[sage-devel] donlowad and upload multiple files in one (zip)package
Hello all, do you consider to allow to download and upload multiple files in Sage? Perhaps in zip file? It would be really usefull for people working on more servers (on laptop at home, on sagenb.org at wife's computer, behind firewall on university, .) and also for teachers (all worksheets in one bundle). Thank you Robert --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Problem sharing directory
On 18 zář, 08:33, Robert Bradshaw wrote: > > Ok, but it should be possible to share the "worksheet" directory ? > > I *need* to share it (we have 3 machines, on which the users -some > >hundredsof students- will be connected at random). > > I don't think that would be possible. What you could do is use the > "server pool" option to use ssh accounts on all three machines to > share the actual computation load, while the notebook frontend would > run on just one machine. This fall the notebook will be made much > more scalable. Great, sounds good, but is this really possible? I found another thread where prof. Stein sais that all accounts have to be on the same Unix machine. http://osdir.com/ml/sage-devel/2009-09/msg00144.html Is this feature allready available? Or should we expect it in the forthcomming version? Sincerely Robert Marik --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] broken desolve with initial conditions
Dear developers of Sage desolve seems to be broken for second order IVP. Some discussion is on http://groups.google.cz/group/sage-support/browse_thread/thread/b6f6b6f056e80149 I hope, I described the solution for the problem, byt I have not enough skills (yes) to write the patch. Is anybody interested in this? Thank you. Robert Marik --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] desolve - returns sometimes equation and sometimes function
Hello all, studying the problem related to desolve and discussed in sage-suppport ( http://groups.google.cz/group/sage-support/browse_thread/thread/b6f6b6f056e80149 ), I have one more question: The function desolve ends with this: if soln.lhs() == dvar: soln = soln.rhs() So sometimes desolve produces expression (if the solution of ODE has been found in explicit form) and sometimes equation. What is the reason for this behavior? I think that it is confusing for the user, isn't it? Thank you Robert Marik --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: desolve - returns sometimes equation and sometimes function
Dear developers of Sage I'm working on trac http://trac.sagemath.org/sage_trac/ticket/6479 adn the foloowing enahancements of desolve * with parameter show_method=True Sage returns pair [solution, string describing method (e.g. linear)] * with parametr ode_contrib=True Sage tries to use ode2 first and if this fails, then tries ode_contrib command, which allows to solve more types of equations. This is False by default, since seems ode_contrib sometimes to hang (more precisely, the computation is t long) I found a bug in maxima reported today at http://news.gmane.org/gmane.comp.mathematics.maxima.general as "Seriious bug in ic2" ( http://thread.gmane.org/gmane.comp.mathematics.maxima.general/28434 ) I suppose to raise warning from Sage to the user that using bc2 command for second order ODE equations which are not linear is insecure. Is it O.K? Is it in harmony with customs used in Sage? And how can send this message to the user, without producing error like raise NotImplementedError, "Maxima was unable to solve this system." Thank you Robert Marik On 4 říj, 00:22, "ma...@mendelu.cz" wrote: > Hello all, > > studying the problem related todesolveand discussed in sage-suppport > (http://groups.google.cz/group/sage-support/browse_thread/thread/b6f6b... > ), I have one more question: > The functiondesolveends with this: > > if soln.lhs() == dvar: > soln = soln.rhs() > > So sometimesdesolveproduces expression (if the solution of ODE has > been found in explicit form) and sometimes equation. > > What is the reason for this behavior? I think that it is confusing for > the user, isn't it? > > Thank you > > Robert Marik --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: desolve - returns sometimes equation and sometimes function
On 7 říj, 10:53, Robert Bradshaw wrote: > On Oct 7, 2009, at 1:40 AM, ma...@mendelu.cz wrote: > > By insecure, I assume you mean it returns bogus answers? Yes, if we substitute initial conditions and solve for constants %k1, %k2, then %k1, %k2 may depend on x and y and thus substitution into general equations produces answer which is not correct. If ic2 gets fixed by maxima folks, how fast will the change propagate to Sage? Is it better to wait for the fix or introduce fixed version of ic2 into the desolvers.py? Which option is preferred by sage developers? Robert --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] solve command - what is actually passed to maxima?
Hello all
Trying to fix http://trac.sagemath.org/sage_trac/ticket/2617
My idea is to write wrapped for maxima solve command which
* passes equations to maxima within errcatch environment (to prevent
errors from solve(acot(x)==0,x) )
* optionally does either nothing more,
or (default) plugs the right hand sides of answers in the form
x=independent_on_x into equation(s),
or optinally checks that the equations are true (this would fix
http://trac.sagemath.org/sage_trac/ticket/3745 )
this would return
sage:solve(x*ln(x)*(x-1),x, check='domains')
[x==1]
sage:solve(x*ln(x)*(x-1),x,check='none')
[x==0, x==1]
and would remove incorrect solutions from trac 3745
I was supprised that
sage: maxima("solve(x*log(x)-x-sin(x)=0,x)")
[x=sin(x)/(log(x)-1)]
has very very different output to
sage: solve(x*log(x)-x-sin(x)==0,x)
[x == r27, x == r25] ugh!
so I was looking for definition of solve in /home/sage/sage_install/
sage-alpha/local/lib/python2.6/site-packages/sage/symbolic/relation.py
(worked on uw.sagenb.org)
where everything seems to be done in m.solve(variables) so I looked
for .solve method.
Doing
m=maxima(something)
m.solve??
does not show anything resonable for me. Also I was not able to find
anything resonable in he file interfaces/maxima.py
Where can i digg out the string which actually is passed to Maxima?
And do you think that the described method to solve the problem is a
good idea?
I did something like this for scalar case in MAW, you can try for
example function calculator at
http://user.mendelu.cz/marik/maw/index.php?lang=en&form=derivace
Robert Marik
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[sage-devel] Re: solve command - what is actually passed to maxima?
On 9 říj, 03:48, kcrisman wrote:
> On Oct 8, 8:35 pm, Jason Grout wrote:
>
Thank to both for your posts.
Among others, I now understand that
m=maxima(something)
m.solve(something)
calls solve(m,something) in Maxima and I can also pass other commands
to the *same* Maxima session by using something like
P=m.parent()
P.eval("maxima_command")
Is this my understanding right?
I was not able to find these informations in documentation. Should
this be documented? Or is this trivial thing for skilled programers in
Python?
Thank you again for extremly usefull answers.
Robert Marik
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[sage-devel] need help related to conversion maxima code into Sage
Hello,
trying to fix desolve_laplace as described at
http://groups.google.cz/group/sage-support/browse_thread/thread/b6f6b6f056e80149/e2c0cf18cce9926c
It is continuation of ticket http://trac.sagemath.org/sage_trac/ticket/6479
which has been (hope) solved.
The temporary code is http://user.mendelu.cz/marik/temp/desolvers.py
and it has been tested on equations like equations on the bottom of
this post.
I have still a problem: I do not know how to get sage representation
of 'at()
current desolve_laplace produce (via maxima) something like
"x*%e^x*('at('diff('f(x),x,1),x=0))-'f(0)*x*%e^x+'f(0)*%e^x"
If I do
A=maxima("'at('diff('f(x),x,1),x=0)")
A.sage()
I expect the corresponding Sage expression but I get errors.
As a result, the new desolve_laplace cannot be used to solve second
order ODE without initial conditions.
Can you help me to came over this step? Thank you.
Robert Marik.
btw: another improvement od desolve_laplace is, that it removes
initial conditions after solving IVP, in the previous version initial
condition persisted in the maxima session - see the Warming message
after desolve_laplace?
---
Test equations for new desolve_laplace:
u=function('u',x)
print "***---"
eq = diff(u,x,x) + u == 0
#A=desolve_laplace(eq,u)
#print A
A=desolve_laplace(eq,u,ics=[0,1,2])
print A
eq = diff(u,x) - exp(-x) - u == 0
A = desolve_laplace(eq,u)
print A
A=desolve_laplace(eq,u,ics=[0,3]).expand()
print A
A=desolve(eq,u,ics=[0,3]).expand()
print A
A=desolve_laplace(eq,u).expand()
print A
print "***"
eq= diff(u,x) - exp(-x) - u == 0
A=desolve_laplace(eq,u,ics=[0,3])
print A
eq= diff(u,x) - exp(-x) - u == 0
A=desolve_laplace(eq,u)
print A
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[sage-devel] Re: need help related to conversion maxima code into Sage
Thanks, thats incredibly fast. I have now error when trying to download the patch. I'll try it as soon as possible. The last version od desolvers.py is http://user.mendelu.cz/marik/temp/desolvers.py Robert M. On 9 říj, 18:25, kcrisman wrote: > See patch at #385. Can you test it with your new desolve_laplace and > desolve code? That would help expose any errors in it. Maybe Sage > will finally be able to do everything it should in an intro DE > course... > > - kcrisman --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: need help related to conversion maxima code into Sage
There seem be problems with trac.sagemath.org. It was possible to find the ticket, but the patch was missing. Now the site seems to be down again. O.K. No problem, we have to wait. When I came (and returned after few months back) to Sage, I was supprised that the algebraic things are supported much better than the things from calculus. Is the explanation that the more Sage developers do their research (and lessons) in algebra and number theory? In the current version of desolve_laplace, the initial conditions persist also for following equations. I think that using your patch which solves trac #385 it will be easy to remove this behavior. Nevertheless, it does not help too much, since sometimes the Maxima returns the answer in terms of inverse laplace transformation, which is seems also not to be supported in Sage. But sure: we have at least something and if somebody is interested, he can add the support for inverse laplace transformation into Sage. Opensource is great :) Thanks Robert Marik On 9 říj, 23:20, "ma...@mendelu.cz" wrote: > Thanks, thats incredibly fast. I have now error when trying to > download the patch. I'll try it as soon as possible. > > The last version od desolvers.py > ishttp://user.mendelu.cz/marik/temp/desolvers.py > > Robert M. > > On 9 říj, 18:25, kcrisman wrote: > > > See patch at #385. Can you test it with your new desolve_laplace and > > desolve code? That would help expose any errors in it. Maybe Sage > > will finally be able to do everything it should in an intro DE > > course... > > > - kcrisman > > --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] test if expression depends on another expression
Hello all, is there in Sage a function which tests, if expression1
depends on expression2 ?
Something like Maxima's command freeof?
I searched Sage sources against 'freeof 'and found nothing relevant.
If not, I think that it will be usefull to add the following function
into Sage, but I have no idea, which file is suitable for this
inclusion and where to state that it should be imported automatically
at the begining.
Robert Marik
def freeof(part,expression):
r"""
test if expression depends on part
INPUT: two expressions
OUTPUT: True or False
EXAMPLES:
sage: y=function('y',x)
sage: x=var('x')
sage: freeof(x,x^2+3)
False
sage: freeof(x^2,x^2+3)
False
sage: freeof(x^6,x^2+3)
True
sage: freeof(y,x^2+3)
True
sage: freeof(diff(y,x),diff(y,x)-4==2)
False
sage: freeof(diff(y,x,x),diff(y,x)-4==2)
True
ALGORITHM: Calls Maxima's command freeof
AUTHOR: Robert Marik (10-2009)
"""
part=part._maxima_()
ans=part.freeof(expression).str()
if ans=='true':
return True
if ans=='false':
return False
else:
raise NotImplementedError, "freeof cannot find the answer to
your question."
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[sage-devel] Re: test if expression depends on another expression
On 11 říj, 15:50, Burcin Erocal wrote: > > Does this work for you? Yes, thanks! > > Cheers, > Burcin --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Sage Tutorial Article Set
Hi than you for info. I just work on improving desolve and realted things (bug http://trac.sagemath.org/sage_trac/ticket/6479 ) . As I understand the previous code, your syntax for desolve is old and preferred one is des = desolve(de,y,ivar=t,ics=[0,1]) Robert Marik btw: the last version of my desolvers.py is on http://user.mendelu.cz/marik/temp/desolvers.py desolve_laplace still does not work as expected, from this reason i wait to http://trac.sagemath.org/sage_trac/ticket/385 and after this I'll send the patch which should be applied (on the top of patch for http://trac.sagemath.org/sage_trac/ticket/6479) to allow lagrange, clairot and other equations. R.M. On 3 říj, 12:49, lutusp wrote: > Hello all. I have completed my Sage tutorial, located at: > > http://arachnoid.com/sage > > The tutorial has eight articles on various topics and includes > downloadable example worksheets for each. I cover installation, > basics, several Calculus topics, differential equations, an example > that creates a set of related useful equations based on one canonical > financial equation (future value), computing the properties of tuned > circuits using vectors and complex numbers, and many graphics examples > mixed into the set. One of my goals was to show how problem solving in > Sage differs from other computer algebra systems. > > I want to thank all of you for your assistance in unraveling some of > the more arcane aspects of Sage and Python during this project, > without which I would have been unable to create some of the better > examples. > > I am more than open to comments and criticism -- I would like to edit > and tune these page while they're fresh in my mind. > > Thanks for reading! --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Worksheet has not been deleted after deleting
Hello all, I observed the following behavior of Sage 4.1.1 and 4.1.2 rc0 * Sign as robert.marik * Create worksheet * Save & quit * Log on * Log in - the worksheet has been deleted * Log on and Log in as admin --- the worksheet is stil there Can you reproduce this behavior at your installations of Sage? If yes, I think that this is a bug. And together with this (perhaps) bug I have another strange bahavior: I start notebook (Sage 4.1.1) with notebook(address='', secure=False, accounts=True, open_viewer=False, server_pool=['sageu...@localhost'],directory='/opt/dotsage/ sage_notebook', timeout=2000, ulimit="-v 30") and the notebooks are still running after three days. I think that already it worked for me, but do not remember which version. Is something broken with timeout option? Or is the problem in my computer (virtual Debian in vmware)? Thank you Sincerely Robert Marik Thank you. Robert Marik --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Worksheet has not been deleted after deleting
Oops, sorry for typo and missing step. * Log in as user (not admin) * Create worksheet and enter something (x^2 + shift enter) * Save & quit * Go to the worksheet again and delete * Log OFF * Log in ad user - the worksheet has been deleted * Log OFF * Log in as admin --- the worksheet is stil there R.M. --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Worksheet has not been deleted after deleting
> I rewrote this functionality in the new notebook. Could you please > try your test at > > http://standalone.sagenb.org/ > > and see whether you have the same problem. And, what browser, OS, etc.? Linux Debian, Firefox (not exactly, debian has its own clone of firefox - IceWeasel) I cannot try it on sagenb.org - i do not know admin password I just created on sagenb.org worksheet named robert.marik with one line: x^2 saved, returned and deleted. It is deleted for me - in Trash. Is it deleted also for admin? R.M. --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Worksheet has not been deleted after deleting
Oooops, I did it on sagenb.org. Now going to standalone.sagenb.org and try the same again R.M. On 12 říj, 19:54, "ma...@mendelu.cz" wrote: > I just created on sagenb.org worksheet named robert.marik with one > line: x^2 saved, returned and deleted. > > It is deleted for me - in Trash. Is it deleted also for admin? > > R.M. --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Patches for differential equations
Hello all This is for developers interested in Calculus. Since the patch for #385 is available and seems to work for me, I finished my work on #6479 You have to use 2 patches from #6479 and one patch from #385 After this we have the following enhancements in Sage: * Fixed #6479 (bad solution of IVP for second order ODE) * Desolve_laplace is more sage-like * Current desolve_laplace keeps initial condition in the system. This unintended behavior has been fixed. * We can solve Lagrange, Clairot, Bessel and other equations * Added support and examples for Runge Kutta methods * desolve with show_method=True outputs the type of the ODE (linear, separable, bernoulli, ) * ic2 and bc2 functions from Maxima do not have bug described at http://thread.gmane.org/gmane.comp.mathematics.maxima.general/28434 If you think that it is useful, please review it. It would be nice to find it in the next releases. It is my first patch for Sage. If something does not satisfy the usual conditions for patches, feel free to let me know or repaire. My last desolvers.py is at http://user.mendelu.cz/marik/temp/desolvers.py I think that documentation needs some revision. I was confused from all these Sage directories. Is the right file for this sage/devel/sage/ doc/en/constructions/calculus.rst ? Or is this file autogenerated from some other file? Thank you for your help during my work on these patches and thank you also for Sage :) Robert Marik --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: test if expression depends on another expression
On 13 říj, 16:08, rjf wrote: > Is x^2+3 free of x^6? > Ordinarily I would think that if E is free of v, then one could vary v > in any way, and not affect the value of E. > If one varies x^6, it is kind of difficult to keep x^2+3 constant. > > I suppose you could specify a program to search in an expression to > see if x^6 occurs as a distinct subcomponent, but it probably wouldn't > be too useful. For example, > does x^6 occur in x*(x^5+1)? > > I suggest you require that the value of v be a symbol. > RJF > Thanks for clarification, I understand. Robert Marik --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: notebook help needed
Do not know if this is relevant, but I get the message It looks like jsMath failed to set up properly (error code -7). I will try to keep going, but it could get ugly. when looking at published worksheets, like http://uw.sagenb.org/home/pub/4/ I do not have this problem with Sage 4.1.1 Firefox 3.0.14 and Win Vista, Robert Marik --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: http://sagenb.org
Hello, I still have problem with jsmath mentioned at thread "notebook help needed". See the copy below and Jason's reply. I have the error message on sagenb.org and I can see Latex code instead of the formula. No problem of this type with Version 4.1.1. It would be nice if jsmath on sagenb.org would work from everywhere without installing any font or anything. I have some students which study during their emplyment, they access my study material and sage notebooks from their offices and somtimes they cannot install any software on these PC's. The same is with PC in lecture halls at our university used for projection on lectures. Many thanks if you look at this. Robert Marik - > Do not know if this is relevant, but I get the message > It looks like jsMath failed to set up properly (error code -7). I > will try to keep going, but it could get ugly. > when looking at published worksheets, like http://uw.sagenb.org/home/pub/4/ > I do not have this problem with Sage 4.1.1 > Firefox 3.0.14 and Win Vista, This is http://wiki.sagemath.org/faq#IgetanerrorfromjsMathorthemathsymbolsdon... Hmmm...are the jsmath image fonts spkg still installed on sagenb? (that spkg probably needs to be updated to copy itself to the right directory now). My guess is that that is the problem. Sagenb is running 4.1.1, so I think this is not a version thing, but something to do with the sagenb switchover. Jason On 15 říj, 02:54, William Stein wrote: > Hi, > > Last night I switched the fullhttp://sagenb.orgover to use the new > separate-from-Sage Sage notebook code. In particular, this involves > using code for which the evaluation and storage code has been > rewritten. I'm curious how it is working for people/courses/whatever. > If you usehttp://sagenb.orgor have students that use it, and > have something to report, this would be a good thread in which to do > so. Is it generally better than before? Did all your work vanish > without a trace? Is it broken for you? > > William > > -- > William Stein > Associate Professor of Mathematics > University of Washingtonhttp://wstein.org --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: http://sagenb.org
On 15 říj, 16:38, Jason Grout wrote: > Pat LeSmithe wrote: > > * Install *all* jsMath image fonts on sagenb.org > > * Silently fall back to using image fonts if TeX fonts are not available > > This is what was done in the sage notebook a few days ago. William had > installed the optional jsmath-image-fonts spkg a long time ago. What > probably happened is that no one rebased the jsmath-image-fonts to copy > to the right javascript directory, and since these all moved around with > the new notebook code, everything is broken with respect to this spkg now. > > A solution is to modify the spkg to install to the right location, and > install it again on sagenb.org. > Installed 4.1.2. and the old spkg file with image fonts. I got this error I copied the image fonts from /opt/sage/local/notebook/javascript/ jsmath to /opt/sage/local/lib/python2.6/site-packages/sagenb/data/ javascript/jsmath and everything works fine. Thank you for the pointers. Robert Marik --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: http://sagenb.org
On 15 říj, 17:55, Jason Grout wrote: > ma...@mendelu.cz wrote: > > Thanks. This issue is now tracked > athttp://trac.sagemath.org/sage_trac/ticket/7229 > >From the manual I have an impression that it is sufficient to download the spkg file, unpack, fix (perhaps only one line) in the install script spkg-install, pack again as jsmath-image-fonts-1.4, test on fresh install of 4.1.2 and post new spkg to trac server. Right? If yes, I can do it tomorrow (we have evening in Europe). Robert M. --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: http://sagenb.org
On 15 říj, 18:57, William Stein wrote: > Yes. And ping me as soon as you do it, since I can review it. > > William The fixed spkg file is at http://user.mendelu.cz/marik/temp/jsmath-image-fonts-1.4.spkg (cannot upload to trac server due to the filesize limit) Robert --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: sage notebook servers
On 16 říj, 06:18, William Stein wrote: > Hi, > > For a grant proposal, I would like to assemble a list of people > running Sage notebook servers either publicly or privately (but more > than just for their own person use, of course, e.g. for their group), > with maybe some statement about how the notebook server is being used. > This could be very helpful for a grant proposal. > > So if you're running a Sage notebook somewhere, could you answer these > questions: > >1. Where? (E.g., "Dept. of Mathematics, University of Maryland") Mendel University of Forestry and Agriculture, Brno, Czech Republic > >2. Why? (E.g, "for our Math 411 course on differential equations") Small server * for basic course in Mathematics course at The Faculty of Regional Development and International Studies (20 students in lab), * for Advanced Mathematics for distant students at Faculty of Forestry and Wood Technology (about 20 students) * and also for any user from the university. (Not public, behind firewall and accessible either from our campus or via proxy server of our university) Robert > > Thanks!! > > William > > -- > William Stein > Associate Professor of Mathematics > University of Washingtonhttp://wstein.org --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] exporting worksheet as html
Hello all, trying to export worksheet in a form of html page which is
accesible even if the sage server is down or behind a firewall and
even if the user has no jsmath fonts.
My attempts include
* Print into PDF - poor quality of math and each math output is shown
two times in resulting file
* Print and save the resulting page as complete html - math is
converted into pictures (which is O.K.) but these pictures are shifted
if the user has some nonstandard settings (like bigger font -
depending on how good are her/his eyes a how big is her/his monitor) -
see e.g. http://user.mendelu.cz/marik/sage/ - the links from the list
It would help me (for example) if all occurences of regular
expressions (Emacs style)
\\newcommand{\\Bold}\[1\]{\\mathbf{#1}}\(.*?\)
\(.*?\)
\(.*?\)
were replaced by something like
http://wood.mendelu.cz/math/mathtex/mathtex.php?\1";>
Then each formula will be replaced by one picture and it will can be
saved together with the page.
Is it possible to define a kind of custom hooks which perform this
task when printing?
Or is it possible (for example) to force latex to compile all formulas
instead of jsMath?
Thank you
Robert M.
btw: I also think on the possibility to produce LaTeX code from Sage
worksheet. Is some of the Sage developers interested in difference
equations going to visit ICDEA 2009 in Estoril next week?
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[sage-devel] Re: exporting worksheet as html
On 16 říj, 14:50, kcrisman wrote: > On Oct 16, 7:41 am, "ma...@mendelu.cz" wrote: > > > Hello all, trying to export worksheet in a form of html page which is > > accesible even if the sage server is down or behind a firewall and > > even if the user has no jsmath fonts. > > > My attempts include > > > * Print into PDF - poor quality of math and each math output is shown > > two times in resulting file > > Just out of curiosity, what version of Sage is that happening in? I > used pdf output last spring every day (for students to download) and > never saw that. 4.1.2 and firefox on CentOS, the problem is also on uw.sagenb.org I evaluated two commands on uw.sagenb.org , then used the blue link print, then choosed in Firefox menu print, posctcript printer and print to the file and finally used ps2pdf to get pdf. Look at http://user.mendelu.cz/marik/temp/a.pdf for result. Robert > > Also, you may want to search the groups, especially sage-edu, for > ongoing work by Rob Beezer to automate the process of creating pdfs > and notebooks from TeX files, as there may be some ideas in those > threads for the "reverse" problem. > > - kcrisman --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: exporting worksheet as html
On 16 říj, 15:38, William Stein wrote: > > > btw: I also think on the possibility to produce LaTeX code from Sage > > worksheet. > > That would be nice. I've never seen an HTML -> Latex converter before > (though there are many Latex-->HTML converters). > In fact, I had in mind something very primitive, based on regular expressions and replacements, which will only work if the user uses some small subset of html. We have formulas in LaTeX and, we can easily translate stuff like ... , few span tags etc and remove the rest. Do you think, it is possible? Something like http://user.mendelu.cz/marik/maw/index.php?lang=en&form=integral - you can try it - clik submit, on the new page submit again and so on and is you are satisfied with your computation, click "build PDF" bottom right. You get PDF which shows what you have seen on html page. Robert --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: finding arclength around a circle hangs maxima
To have more fun, I have this:
ma...@asus-eee:/opt/sage$ ./sage
--
| Sage Version 4.1.2, Release Date: 2009-10-14 |
| Type notebook() for the GUI, and license() for information.|
--
sage: t=var('t')
sage: a=sqrt((sin(t))^2 + (cos(t))^2)
sage: integrate(a, t, 0, 2*pi)
pi
sage:
And this is maxima session:
;;; Loading #P"/opt/sage/local/lib/ecl/defsystem.fas"
;;; Loading #P"/opt/sage/local/lib/ecl/cmp.fas"
;;; Loading #P"/opt/sage/local/lib/ecl/sysfun.lsp"
Maxima 5.19.1 http://maxima.sourceforge.net
Using Lisp ECL 9.8.4
Distributed under the GNU Public License. See the file COPYING.
Dedicated to the memory of William Schelter.
The function bug_report() provides bug reporting information.
(%i1) 0;sconcat("__SAGE_SYNCHRO_MARKER_",(1784072509+1));
(%o1) 0
(%o2) __SAGE_SYNCHRO_MARKER_1784072510
(%i3) display2d:false; domain: complex; keepfloat: true; load
(topoly_solver);
(%o3) false
(%o4) complex
(%o5) true
(%o6) "/opt/sage/local/share/maxima/5.19.1/share/contrib/
topoly_solver.mac"
(%i7) 0;sconcat("__SAGE_SYNCHRO_MARKER_",(572821093+1));
(%o7) 0
(%o8) "__SAGE_SYNCHRO_MARKER_572821094"
(%i9) nolabels:true;
(%o9) true
(%i10) :lisp (defun tex-derivative (x l r) (tex (if $derivabbrev (tex-
dabbrev x) (tex-d x '\\partial)) l r lop rop ))
0;sconcat("__SAGE_SYNCHRO_MARKER_",(86715755+1));
TEX-DERIVATIVE
(%i10)
(%o10) 0
(%o11) "__SAGE_SYNCHRO_MARKER_86715756"
(%i12) 0;
(%o12) 0
(%i13) sage0 : (((sin(t))^(2))+((cos(t))^(2)))^(1/2)$
(%i14) 0;sconcat("__SAGE_SYNCHRO_MARKER_",(1995813336+1));
(%o14) 0
(%o15) "__SAGE_SYNCHRO_MARKER_1995813337"
(%i16) sage1 : t$
(%i17) 0;sconcat("__SAGE_SYNCHRO_MARKER_",(1953885597+1));
(%o17) 0
(%o18) "__SAGE_SYNCHRO_MARKER_1953885598"
(%i19) sage2 : 0$
(%i20) 0;sconcat("__SAGE_SYNCHRO_MARKER_",(333161657+1));
(%o20) 0
(%o21) "__SAGE_SYNCHRO_MARKER_333161658"
(%i22) sage3 : (%pi)*(2)$
(%i23) 0;sconcat("__SAGE_SYNCHRO_MARKER_",(779811+1));
(%o23) 0
(%o24) "__SAGE_SYNCHRO_MARKER_779812"
(%i25) sage4 : integrate(sage0,sage1,sage2,sage3)$
(%i26) kill(sage3)$kill(sage2)$kill(sage1)$kill(sage0)$kill(sage3)$kill
(sage2)$kill(sage1)$kill(sage0)$0;sconcat("__SAGE_SYNCHRO_MARKER_",
(2067936922+1));
(%o30) 0
(%o31) "__SAGE_SYNCHRO_MARKER_2067936923"
(%i32) sage5 : 0$
(%i33) 0;sconcat("__SAGE_SYNCHRO_MARKER_",(1769152096+1));
(%o33) 0
(%o34) "__SAGE_SYNCHRO_MARKER_1769152097"
(%i35) sage6 : gen(sage5)$
(%i36) kill(sage5)$kill(sage5)$0;sconcat("__SAGE_SYNCHRO_MARKER_",
(1390469140+1));
(%o37) 0
so maxima is doing
sage0 : (((sin(t))^(2))+((cos(t))^(2)))^(1/2)$
sage1 : t$
sage2 : 0$
sage3 : (%pi)*(2)$
sage4 : integrate(sage0,sage1,sage2,sage3)
Lets try it:
--
| Sage Version 4.1.2, Release Date: 2009-10-14 |
| Type notebook() for the GUI, and license() for information.|
--
sage: t=var('t')
sage: a=sqrt((sin(t))^2 + (cos(t))^2)
sage: integrate(a, t, 0, 2*pi)
pi
sage: maxima("(sage0:(((sin(t))^(2))+((cos(t))^(2)))^(1/2),sage1 : t,
sage2 : 0, sage3 : (%pi)*(2), sage4 : integrate
(sage0,sage1,sage2,sage3))")
%pi
Tests within maxima
1. maxima from debian package:
ma...@asus-eee:~$ maxima --batch-string="integrate(sqrt(sin(x)^2+cos(x)
^2),x,0,2*%pi);"
Maxima 5.13.0 http://maxima.sourceforge.net
Using Lisp GNU Common Lisp (GCL) GCL 2.6.7 (aka GCL)
Distributed under the GNU Public License. See the file COPYING.
Dedicated to the memory of William Schelter.
This is a development version of Maxima. The function bug_report()
provides bug reporting information.
2 2
(%i1) integrate(sqrt(sin (x) + cos (x)), x, 0, 2 %pi)
(%o1)2 %pi
ma...@asus-eee:~$
2. maxima in Sage:
ma...@asus-eee:/opt/sage$ ./sage
--
| Sage Version 4.1.2, Release Date: 2009-10-14 |
| Type notebook() for the GUI, and license() for information.|
--
sage: maxima("integrate(sqrt(sin(t)^2+cos(t)^2),t,0,2*%pi)")
%pi
sage:
Broken version of Maxima? Did Maxima in Sage passed tests? Maxima
commes with many tests from upstream. Have these tests been tested?
Robert
On 16 říj, 20:28, Jason Grout wrote:
> Something is seriously wrong with simple integration in 4.1.2:
>
> sage: a=sqrt((sin(t))^2 + (cos(t))^2)
> sage: integrate(a, t, 0, 2*pi) # WRONG!
> pi
> sage: a.simplify_full().simplify_trig()
> 1
> sage: integrate(a.simplify_full().simplify_trig(), t, 0, 2*pi)
> 2*pi
>
> Any idea what is g
[sage-devel] Re: finding arclength around a circle hangs maxima
I am. I will write there. Robert On 16 říj, 22:23, Jason Grout wrote: > kcrisman wrote: > > This was the Maxima upgrade, for sure. It is not in 4.1.1 (just > > checked) and is in the latest CVS of Maxima (just checked that, too). > > I can't submit a bug report to them right now - can you email their > > list (I think you're on it?) and see if they know about it? > > I'm not on their list. I hope Robert Dodier or someone else sees this. > > Thanks, > > Jason --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: finding arclength around a circle hangs maxima
On 16 říj, 22:44, "ma...@mendelu.cz" wrote: > I am. I will write there. > it is http://thread.gmane.org/gmane.comp.mathematics.maxima.general/28550 R. --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: finding arclength around a circle hangs maxima
A should we open trac and add test if this has been fixed? On 16 říj, 23:14, Maurizio wrote: > to me, this looks like a strong encouragement to provide sage 4.1.3 > with a couple of bugfixes (also considering something that could arise > from the new notebook) anytime very soon: I don't think it is a good > idea to have a release with such a serious bug, out for too long... > the problem is that I wouldn't like to switch back to an old maxima, > so we should at least wait for them fixing it... maybe we can help on > that > > regards > > Maurizio > > On 16 Ott, 22:55, "ma...@mendelu.cz" wrote: > > > On 16 říj, 22:44, "ma...@mendelu.cz" wrote:> I am. I > > will write there. > > > it ishttp://thread.gmane.org/gmane.comp.mathematics.maxima.general/28550 > > R. --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: finding arclength around a circle hangs maxima
On 17 říj, 00:40, Robert Dodier wrote: > On Oct 16, 2:23 pm, Jason Grout wrote: > > > I'm not on their list. I hope Robert Dodier or someone else sees this. > > Probably it's best to submit Maxima bugs to the bug > tracker.http://sourceforge.net/tracker/?func=browse&group_id=4933&atid=104933 > Thanks, reported as bug No 2880797 > FWIW > > Robert Dodier --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Incorrect definite integral
> > This is also present in the Maxima current CVS version. Someone may > want to report this to the Maxima bug tracker - I cannot right now. > Old Maxima 5.18 has the same problem. I reported this as ID 2880886, since the problem seems to be different one than https://sourceforge.net/tracker/?func=detail&aid=2880797&group_id=4933&atid=104933 Robert --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Incorrect definite integral
On 17 říj, 12:42, Harald Schilly wrote: > On Oct 17, 8:18 am, "ma...@mendelu.cz" wrote: > > > I reported this as ID 2880886, ... > > Thanks. Out of curiosity, i tried this integral with sympy. This ends > up to take minutes or longer. Should we report this as a bug, too? > > integrate(cos(x)^2 * (1 + sin(x)^2)^-3,x,0,pi/2, algorithm='sympy') > and woflram alpha does not evaluate the integral (returns numerical approximation) R. > H --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Can Sage solve inequalities?
Hello all, does Sage solve inequlitites? According to Maxima mail list ( http://thread.gmane.org/gmane.comp.mathematics.maxima.general/28497/focus=28530 ) Maxima can do at elast someting in this area. I was not able to find out, wheather Sage can somehow solve ineqaulities - via maxima or via another way. Can it? Robert Marik --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Can Sage solve inequalities?
btw: I was able to find only this: http://groups.google.cz/group/sage-devel/browse_thread/thread/c5990ef9e797109e/e7bf439813a6489c?lnk=gst&q=inequality#e7bf439813a6489c On 17 říj, 19:21, "ma...@mendelu.cz" wrote: > Hello all, > > does Sage solve inequlitites? According to Maxima mail list > (http://thread.gmane.org/gmane.comp.mathematics.maxima.general/28497/f... > ) Maxima can do at elast someting in this area. I was not able to find > out, wheather Sage can somehow solve ineqaulities - via maxima or via > another way. Can it? > > Robert Marik --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Is this a bug?
You have to use finer mesh / more points in such cases
u = var('u')
parametric_plot3d( (u*sin(u), u*cos(u), u), (u, 0,
100),plot_points=500,viewer='tachyon')
(I tested it with viewer tachyon since I do not have java on current
machine)
Hope this helps
Robert
On 17 říj, 20:00, QuantumDream wrote:
> OK, so ,there is the plot_points option, but shouldn't the default
> value of the plot_point be a function of the range?
> Anyway, it's not a big deal for me, but maybe for my Calc students :)
>
> Best,
> -M.
>
> On Oct 17, 12:51 pm, QuantumDream wrote:
>
> > I'm running Sage4.1.1 on a 32-bit Ubuntu 9.04 laptop w/ FF, and there
> > is a HUGE difference between the outputs of the following two
> > commands:
>
> > u = var('u')
> > parametric_plot3d( (u*sin(u), u*cos(u), u), (u, 0, 50))
>
> > vs.
>
> > u = var('u')
> > parametric_plot3d( (u*sin(u), u*cos(u), u), (u, 0, 100))
>
> > The first gives what is expected, a smooth helix on the surface of a
> > cone, but the 2nd one gives a highly coarse rendition of that curve.
> > See a pic
> > here:http://www.mediafire.com/imageview.php?quickkey=yeewzcnktix&thumb=5
>
> > Can anyone confirm this?
>
> > Best,
> > -M.
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[sage-devel] Re: Can Sage solve inequalities?
--
| Sage Version 4.1.2, Release Date: 2009-10-13 |
| Type notebook() for the GUI, and license() for information.|
--
sage: a= x^2+5*x+6 < 0
sage: b=a._maxima_()
sage: b.parent().eval("load(solve_rat_ineq)")
'"/opt/sage-4.1.2-linux-Debian_GNU_Linux_5.0.3_lenny-i686-Linux/local/
share/maxima/5.19.1/share/contrib/solve_rat_ineq.mac"'
sage: b.solve_rat_ineq
()
[[x>-3,x<-2]]
sage: a= x^2+5*x+6 <= 0
sage: b=a._maxima_()
sage: b.solve_rat_ineq()
[[x>=-3,x<=-2]]
sage:
Hm, probably this is the only available way how to solve inequalities
and at least the wrapper should be written.
I can try it, but not within these 14 days.
Robert
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[sage-devel] Re: Can Sage solve inequalities?
On 17 říj, 23:27, Robert Dodier wrote: > ma...@mendelu.cz wrote: > > does Sage solve inequlitites? According to Maxima mail list ( > >http://thread.gmane.org/gmane.comp.mathematics.maxima.general/28497/f... > > ) Maxima can do at elast someting in this area. I was not able to find > > out, wheather Sage can somehow solve ineqaulities - via maxima or via > > another way. Can it? > > Maybe the Maxima share package fourier_elim is useful to you. > There is no documentation, but there are some examples in > rtest_fourier_elim.mac. Also look in the mailing list archive for > some mention of it. I'm sure the author (Barton Willis) would be > happy to answer questions posted to the mailing list. > Many thanks for this information! Very interesting! Robert > FWIW > > Robert Dodier --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Can Sage solve inequalities?
On 17 říj, 21:17, William Stein wrote: > > Hm, probably this is the only available way how to solve inequalities > > and at least the wrapper should be written. > > I can try it, but not within these 14 days. > > Wow, that's awesome. You should definitely try two weeks from now!! Despite my previous posts, I am working on this, hope to finish within two weeks :) * I foud a bug (and a solution how to fix) in solve_rat_ineq -- I will report it in Maxima forum as soon as possible * the maxima expression x#0 (x is not equal 0) has no meaning in Sage. If the answer from Maxima contains x#0 and this answer is in variable sol, then sage: sol.sage() fails. I have no idea how and where could fix it. Can somebody add this feature to Sage? Thanks. Robert > > William --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Can Sage solve inequalities?
> > This is already fixed on Trac # 1163, waiting for review - I hope this > does what you need. In fact, if you could review that, # 385, and # > 3914, I think they are all related to things you are working on, so > that would be very helpful. > Thanks for your answer The patches are nice and important, but have in this week very limited access to Sage to test these patchs. And another problem is, that I am completely new in Sage and Python. I think that the tickets should be closed by some priviledges skilled developers. Is this the case in Sage? Robert --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Tests, forget and trac 7084, perhaps nother bug?
Hello all, I looked at trac 7084 http://trac.sagemath.org/sage_trac/ticket/7084
* If I enter the commands from test section in
sage: var('m')
m
sage: assume(n, 'integer'); assume(m, 'integer')
into Sage session (4.2), then Sage hangs. I have to enter also var
('n') to continue in Sage notebook without hanging. However, if I
run ./sage -t devel/sage/sage/symbolic/assumptions.py , then the tests
are O.K. It is to be surprising for me. Why does
sage: assume(n, 'integer'); assume(m, 'integer')
hang Sage in notebook and not when running tests?
* I think that forget does not work as excepted, see the following
Sage session and the last three outputs.
Robert
--
| Sage Version 4.2, Release Date: 2009-10-24 |
| Type notebook() for the GUI, and license() for information.|
--
Loading Sage library. Current Mercurial branch is: kopie
sage: var('m')
m
sage: n
sage: var('n')
n
sage: assume(n, 'integer'); assume(m, 'integer')
sage: sin(n*pi).simplify()
0
sage: sin(m*pi).simplify()
0
sage: forget()
sage: sin(m*pi).simplify()
0
sage: sin(n*pi).simplify()
sin(pi*n)
sage:
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[sage-devel] Re: Can Sage solve inequalities?
> > > > Hm, probably this is the only available way how to solveinequalities > > > > and at least the wrapper should be written. > > > > I can try it, but not within these 14 days. The patch is here: http://trac.sagemath.org/sage_trac/ticket/7325 Robert --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] latex representation for expresions like 1.42531324e-41
Hello all
The latex representation of numbers in scientific notation works as
excepted, unless we have these numbers as results from numerical
integral. Compare the last two outputs i nthe session below. Why is
sage: latex(A[1])
1.66533453694e-14
and not
sage: latex(A[1])
1.66533453694 \times 10^{-14}
?
[ma...@um-bc107 /opt/sage-4.2]$ ./sage
--
| Sage Version 4.2, Release Date: 2009-10-24 |
| Type notebook() for the GUI, and license() for information.|
--
Loading Sage library. Current Mercurial branch is: kopie
sage: A=integral_numerical(x,2,1)
sage: A
(-1.5, 1.6653345369377348e-14)
sage: latex(A[1])
1.66533453694e-14
sage: latex(1.4565421654e-15)
1.4565421654 \times 10^{-15}
sage:
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[sage-devel] Re: latex representation for expresions like 1.42531324e-41
On 30 říj, 08:32, William Stein wrote: > > Obviously, it would be nice if the latex command were improved so it > is aware of Python floats. That would be a nice enhancement you > can contribute to sage. Thank you for quick answer. Can you give me few pointers where to fix it? Robert > > -- William --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: latex representation for expresions like 1.42531324e-41
On 30 říj, 08:49, William Stein wrote:
>
> There is a table in there called latex_table. You have to
> add an entry of the form
>
>float:float_function
>
> where you might first try something like this just to get it to work:
>
> def float_function(x):
> from sage.rings.all import RR
> return RR(x)._latex_()
>
Thanks, I fixed this, running tests now and then I'll open trac and
submit a patch.
Your solution produces output like 1.\times 10^{32} for input
like latex(float(1e+32)) and hence I choosed slightly different
solution (essentially the method _latex_() from the file which defines
latex representation for real numbers but without calling RR).
Thank you very much
Robert M.
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[sage-devel] maxima-init.lisp file
Hello all,
I wondered for longer time, why I got error which nobody reported (see
the bottom of this message).
Now I found the explanation: I have ~/.maxima/maxima-init.lisp file
with the following line:
:lisp(setf (get '%sin 'tex) nil)
The reason for this file is to get "sin(x)" instead of "sin x" when
exporting sine function from Maxima to TeX.
This file caused the error in tests. Removing this file solves the
problem.
So my question is: Is it O.K. to use user's own (or system's) maxima-
init.lisp file in Sage? The user may have some nonstadard settings in
this file, which could cause unexpected behavior of Sage.
Or will we suppose that only experienced users have maxima-init.lisp
file and they should know what they are doing?
Robert Marik
[ma...@um-bc107 /opt/sage-4.2]$ ./sage -t "devel/sage/sage/interfaces/
maxima.py"
sage -t "devel/sage/sage/interfaces/maxima.py"
**
File "/opt/sage-4.2/devel/sage/sage/interfaces/maxima.py", line 383:
sage: latex(maxima('sin(u) + sinh(v^2)'))
Expected:
\sinh v^2+\sin u
Got:
\sinh v^2+\sin \left(u\right)
**
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[sage-devel] Re: deprecation policy
perhaps a vocabulary (simple html page or whatever else) which translates old names into new names would be also useful. On 1 lis, 16:37, Ralf Hemmecke wrote: > What about deprecation warning and moving the deprecated functionality > to an optional package in the next version of Sage with a clear notice > that there is no official support for this optional package. > > Ralf --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Should trac has a 'report upstream' pull-down?
> We might also have an option for "fixed in our version", as many times > we will patch an spkg and simultaneously report it upstream. When we > eventually get the upstream fix in an update, we delete our patch. > In other words, is this preferred way to fix broken Maxima commands? 1. Fix in maxima.spkg 2. Add test that the fixed spkg is used. I am asking because of work on trac http://trac.sagemath.org/sage_trac/ticket/7325 (fixed in CVS Maxima few days ago). I fixed Maxima part in python code in the patch submitted to this trac, which seems to be not accepted. And what about http://trac.sagemath.org/sage_trac/ticket/6479 where I fixed maxima commands ic2 and bc2 directly in Python code (lines 322-328 and 341--346). Should this ticket been reopened and ic2, bc2 fixed as described above? Robert --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] where can i find history of simplify_trig
Dear developers, I looked into sage/symbolics/expressions.pyx and the definition of simplify_trig(). This funciton applies trigsimp and trigexpand from Maxima and as a result, sage: (tan(3*x)).simplify_full() gives terrible result (4*cos(x)^2 - 1)*sin(x)/(4*cos(x)^3 - 3*cos(x)) Despite the fact ther there is more elaborated interface to expansion of trigonometric functions in expand_trig, simplify_full blindly applies trigexpand. I was not able to find in tracs, why has this bee added. Can out find out why is this trigexpand function present in simplify_trig()? Are there objections to remove it? many thanks Robert btw: I improved support for logcontract at http://trac.sagemath.org/sage_trac/ticket/7334 , feel free to review or add comments. --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Can Sage solve inequalities?
> > * the maxima expression x#0 (x is not equal 0) has no meaning in
> > Sage. If the answer from Maxima contains x#0 and this answer is in
> > variable sol, then
> > sage: sol.sage()
> > fails. I have no idea how and where could fix it. Can somebody add
> > this feature to Sage? Thanks.
>
> This is already fixed on Trac # 1163, waiting for review - I hope this
> does what you need.
I do not think so. I installed this patch and the command
sage: maxima("x#0").sage()
gives still error: TypeError: unable to make sense of Maxima
expression 'x#0' in Sage
Anyway, I uploaded new patch and hope that problem related to parsing
# will be solved in another patch.
Many thanks for info.
Robert
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[sage-devel] Re: bool() on an inequality
On 11 lis, 12:45, Carlo Hamalainen wrote:
> Hi,
>
> This is weird:
>
> sage: p = var('p')
> sage: q = var('q')
> sage: assume(p >= 0)
> sage: assume(q >= 0)
> sage: assume(p <= 1)
> sage: assume(q <= 1)
> sage: bool(p**2 <= 1)
> True
> sage: bool(q**2 <= 1)
> True
> sage: bool(p**2 + q**2 <= 2)
> False
I think that assume facitlity is not strong enough to solve similar
problems.
R.
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[sage-devel] Adding new functions for specific tasks related (logarithm, rational functions, ....)
Dear readers of sage-devel This is related to Ticket #7334 http://trac.sagemath.org/sage_trac/ticket/7334 which introduces new function for contracting logarithms, expanding logarithms, reducing powers of trigonometric functions and simplifying rational expressions. -- Burcin wrote: I really dislike the idea of adding a new function for each functionality of this kind. This makes it very hard for users to figure out the function name they need for a specific task. We should be able to provide an interface to all these "rewriting" tasks through a few conceptually defined methods like rewrite(), expand () and combine()( or contract()?). Francois Maltey had a proposal for a possible interface to all this. Maybe he can comment here, or we can discuss his proposal on sage- devel. -- It would be great to find some simple and clean solution which gives access to many posibilities included in Maxima or/and other CAS. I think that if we take into account the many possibilities how to simplify expressions, it will be difficult to do this job. I think that it is better to have small functions which do their small job - they do what the user wants. I think that this is Maxima approach. I do not like the approach in Maple and Mathematica, where user has one big command for many simplifications and it is not easy to find out, what to do, if we do not want to use some of simplifications and rewriting rules included in this big command. If such a complete solution for rewriting tasks appears, it would be great to give to the users enough power for fine tunning, like current expand_trig() Thanks. Robert --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Adding new functions for specific tasks related (logarithm, rational functions, ....)
On 12 lis, 15:17, Francois Maltey wrote: > So imagine a Sage 4.xyz with > > y = log(2)+log(3)+exp(2)*exp(3) > contract (y) # log(6)+exp(5) > contract(y, target=log) # log(6)+exp(2)*exp(3) > contract(y, target=exp) # log(2)+log(3)+exp(5) > > An other option may be a predicate select in order to restrain the > tested subexpression. > > contract (exp(x+1)*exp(x-1)*exp(y), target=exp, select=lambda subexpr : > has(subexpr, x)) > # the answer will be exp(2*x)*exp(y) Sound good, thanks. I look forward to Sage 4.xyz :) Thank you for your long and detailed answer. Robert --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Adding new functions for specific tasks related (logarithm, rational functions, ....)
On 12 lis, 16:38, Burcin Erocal wrote: > Care to help? Many thanks but I do not know anything about programming. I can write simple artless scripts and thats all. I also do not know enough from complex analysis, know nothing about computer algorithms and so on. I think that nobody would be interested in CAS with code from complete beginner. I like opensource software and math, but have not enough knowledges to bring significant contribution in this topic. Could the conclusion be the following? "If you want (and if the realease manager includes corresponding patches), add support for Maxima commands which you need. When python of ginac will be able to replace these commands, these interfaces to Maxima commands will be removed." Robert --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Adding new functions for specific tasks related (logarithm, rational functions, ....)
On 13 lis, 14:30, Burcin Erocal wrote: > On Thu, 12 Nov 2009 12:30:01 -0800 (PST) > > "ma...@mendelu.cz" wrote: > > Could the conclusion be the following? > > "If you want (and if the realease manager includes corresponding > > patches), add support for Maxima commands which you need. When python > > of ginac will be able to replace these commands, these interfaces to > > Maxima commands will be removed." > > I am really reluctant to keep adding functions, since they would have > to be maintained for a long time because of the deprecation policy. > > Let's see if we can quickly come up with a "clean" solution in the > next couple of days. Seems as a very good suggestion. My techaer of english told me once, that "couple of days" means "exactly two days" :). Is it true? If yes, then I think that a couple of weeks or couple of months are also convenient and perhaps better, since we have to introduce new general concept. If I will be able to work on the problem (despite very limited knowledge of programming), I will be happy to help with this task. At least with testing and reporting bugs. Thank you. Robert --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Adding new functions for specific tasks related (logarithm, rational functions, ....)
On 14 lis, 18:30, Francois Maltey wrote: > a'-Extract and test sin in sin(x) is easy, but recognize the + in x+y is > heavy. > And perhaps even worse for x+z+z+z_1 The paper of RJF can be perhaps useful (examples written in Maxima, but general ideas) to deal with addition and multiplication: http://www.cs.berkeley.edu/~fateman/papers/partition.pdf Robert --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: Which software to write Sage code ?
On 17 lis, 13:00, Mike Hansen wrote: > Hello, > > On Tue, Nov 17, 2009 at 4:32 PM, Nathann Cohen > wrote: > > I am using Emacs ( and I am interested in knowing which softwares you > > are using ), but so far I mainly failed to convince people this was > > also the best option for them. > > I use Emacs for everything. > Me to. And the others can use any other editor (PSPad, gvim, joe, ). It would be painfull to use another editor for Sage, another for LaTeX, another for .. Let everybody uses his favorit editor. I use Emacs for everything, but I would not convince people this is also the best option for them. Robert --~--~-~--~~~---~--~~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-devel] Re: solve([x==x],x)
On 18 lis, 21:49, Harald Schilly wrote:
> I got this from the "report a problem" form, confirmed in 4.2.1
>
> sage: solve([x==x],x)
> gives an exception.
>
> Maxima says this:
> $ maxima -q
> (%i1) solve([x=x],x);
> (%o1) all
> (%i2)
Similar problem is
solve(SR(0),x)
and another problem is
solve(0,x)
- but both these cases are highly improbable. Should be the second one
fixed or no?
I think that it is easy to catch the answer 'all' in the maxima output
and change into anything we want on output, but the question is, what
should be the output of solve([x==x],x) and solve([x==x],x,
solution_dict=True) in Sage
btw:
sage: y=var('y')
sage: solve([x==x,y==y],[x,y])
[[x == r2, y == r1]]
sage:
I did not look to the Maxima code (can look tomorow, we have a
midnight in five minutes), but from the test like above it seems that
the answer 'all' appears only for equations in one variable.
Robert
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[sage-devel] Re: solve([x==x],x)
On 18 lis, 23:54, "ma...@mendelu.cz" wrote:
> On 18 lis, 21:49, Harald Schilly wrote:
>
> > I got this from the "report a problem" form, confirmed in 4.2.1
>
> > sage: solve([x==x],x)
> > gives an exception.
>
> > Maxima says this:
> > $ maxima -q
> > (%i1) solve([x=x],x);
> > (%o1) all
> > (%i2)
>
> Similar problem is
> solve(SR(0),x)
>
> and another problem is
> solve(0,x)
> - but both these cases are highly improbable. Should be the second one
> fixed or no?
>
> I think that it is easy to catch the answer 'all' in the maxima output
> and change into anything we want on output, but the question is, what
> should be the output of solve([x==x],x) and solve([x==x],x,
> solution_dict=True) in Sage
>
> btw:
>
> sage: y=var('y')
> sage: solve([x==x,y==y],[x,y])
> [[x == r2, y == r1]]
> sage:
>
> I did not look to the Maxima code (can look tomorow, we have a
> midnight in five minutes), but from the test like above it seems that
> the answer 'all' appears only for equations in one variable.
Related Maxima code is at
http://maxima.cvs.sourceforge.net/viewvc/maxima/maxima/src/solve.lisp?revision=1.25&view=markup
146 ;; Deal with special cases.
147 (cond
148;; Trivially true equations for any set of variables.
149((equal eql '(0))
150 (return '$all))
151
152;; Trivially false equations: return []
153((or (null varl) (null eql))
154 (return (make-mlist-simp)))
Another fast solution is to patch maxima file solve.lisp and replace
line 150 by something which is more resonable in Sage, but this may
break some maxima tests. Btw: is maxima build tested? (I mean the test
suite which comes with maxima, not the tests within Sage.)
R.
>
> Robert
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[sage-devel] Re: solve([x==x],x)
> [x==r1] would be consistent with the multivariable case; I like that
> better than True or [x==x], for example.
>
Does this mean [x==r1] when called for the first time, [x==r2] when
for the secod time and so on?
Look at the example below.
Robert
--
| Sage Version 4.2.1, Release Date: 2009-11-14 |
| Type notebook() for the GUI, and license() for information.|
--
Loading Sage library. Current Mercurial branch is: magic_variables
sage: y=var('y'); solve([x==x,y==y],[x,y])
[[x == r2, y == r1]]
sage: y=var('y'); solve([x==x,y==y],[x,y])
[[x == r4, y == r3]]
sage: y=var('y'); solve([x==x,y==y],[x,y])
[[x == r6, y == r5]]
sage:
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[sage-devel] Re: solve([x==x],x)
On 19 lis, 04:47, kcrisman wrote: > > [x==r1] would be consistent with the multivariable case; I like that > > better than True or [x==x], for example. > > I think that makes sense, especially with the to_poly_solve update > recently merged, which uses that syntax. Robert, perhaps the > inequality patch should return x==r1 as well instead of 'all' in a > similar situation, then? Just a thought. But don't patch Maxima - > just catch it on the Sage end. This could be, but the inequality solvers in Maxima never return (I think) r1, r2, What about x>-Infinity ? Robert > > - kcrisman -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: solve([x==x],x)
On 19 lis, 07:35, "ma...@mendelu.cz" wrote: > > [x==r1] would be consistent with the multivariable case; I like that > > better than True or [x==x], for example. > > Does this mean [x==r1] when called for the first time, [x==r2] when > for the secod time and so on? > Do not know where to find the next free variable. I will patch in such a way that it returns [x==r1] in all cases and ([x=r1],[]) for multiplicities:True. O.K.? Is now http://trac.sagemath.org/sage_trac/ticket/7491 (I was not able to find related ticket, perhaps never reported) Robert -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] missing \left and \right when translating product to latex
Dear developers
The following LaTeX exporession is not nice
sage: latex(x*(1/(x^2)+sqrt(x^7)))
{(\sqrt{x^{7}} + \frac{1}{x^{2}})} x
far better would be
sage: latex(x*(1/(x^2)+sqrt(x^7)))
{\left(\sqrt{x^{7}} + \frac{1}{x^{2}}\right)} x
Is the following code from pynac from file mul.cpp responsible for
converting product into LaTeX? What is wrong with this. code? I see
some \left and \right, but these commands do not appear in output of
latex command.
bool parenthesis = ((coeffstr.find(' ') !=
std::string::npos)||
(coeffstr.find('+') != std::string::npos) ||
(coeffstr.find('-') != std::string::npos));// ||
//(coeffstr.find('/') != std::string::npos) ||
//(coeffstr.find('*') != std::string::npos) ||
//(coeffstr.find('^') != std::string::npos));
if (!coeff.is_equal(*_num1_p) &&
(!coeff.is_equal(*_num_1_p) || coeff.is_parent_pos_char
())) {
if (parenthesis) {
if (latex)
c.s << "\\left(";
else
c.s << '(';
}
c.s
[sage-devel] Re: Sage 4.3.alpha0 released!
Thanks Mike I wonder how tickets with positive review are merged into Sage. The following two have positive review and were not included. Is something wrong with the patches? Or should the tickets simply wait for inclusion? http://trac.sagemath.org/sage_trac/ticket/7325 http://trac.sagemath.org/sage_trac/ticket/6479 Many thanks Robert On 22 lis, 06:53, Mike Hansen wrote: > Hello all, > > Sage 4.3.alpha0 is out! Sage 4.3 now contains much of the new > categories code from the sage-combinat team! It's been in development > for quite awhile, and it's great to finally get it in. There is one > known failure in sage/interfaces/maxima.py caused by #7401. This > issue will be fixed in alpha1 when it comes out. > > Source and binary are available at > > http://sage.math.washington.edu/home/mhansen/release/4.3/alpha0/sage-...http://sage.math.washington.edu/home/mhansen/release/4.3/alpha0/sage-... > > The upgrade path is > > http://sage.math.washington.edu/home/mhansen/release/4.3/alpha0/sage-... > > Tickets merged in 4.3.alpha0: > > #7420: Mike Hansen: Fix uncaught infinite loop in coercion discovery > [Reviewed by Nicolas M. Thiéry, Robert Bradshaw] > #7421: Nicolas M. Thiéry: Weaker precondition for registering a new > coercion. [Reviewed by Robert Bradshaw] > #7460: William Stein: numerical noise on itanium (iras) [Reviewed by > Mike Hansen] > #1163: Karl-Dieter Crisman: make assume behave more consistently and > catch inconsistent assumptions [Reviewed by Jason Grout, Robert Marik] > #3663: Anne Schilling, Brant Jones: add support for affine crystals > [with patch, positive review] [Reviewed by Dan Bump] > #4326: Nicolas M. Thiéry, with help from Anne Schilling, Daniel Bump, > Nicolas Borie, Qiang Wang, Steve Pon: Root systems improvements > [Reviewed by Daniel Bump, Mike Hansen] > #5480: Alex Ghitza: R.quotient_by_principal_ideal() is > self-contradictory [Reviewed by Mike Hansen] > #5482: Alex Ghitza: Quotient ring can be created without generator > names [Reviewed by Mike Hansen] > #5794: Dan Bump: exceptional and reducible type branching rules > [Reviewed by Brant Jones] > #5891: Nicolas M. Thiéry: Categories for the working mathematics > programmer [Reviewed by Robert Bradshaw, Craig Citro, Florent Hivert, > David Kohel, David Roe, Anne Schilling, William Stein, Javier > Vengoroso] > #6136: Nicolas M. Thiéry: (Combinatorial) Free modules: cleanup, > abstraction into categories, and functorial constructions [Reviewed by > Florent Hivert] > #6137: Nicolas M. Thiéry: Symmetric functions: refactoring to use > coercions, categories, unique rep, and Hopf algebra framework > [Reviewed by Jason Bandlow] > #6138: Nicolas M. Thiéry: SymmetricGroupAlgebra: updates w.r.t. > categories and free modules [Reviewed by Florent Hivert] > #6318: Adam Webb: optional doctest failure -- axiom interface -- > something doesn't work [Reviewed by Mike Hansen] > #6354: Nicolas M. Thiéry: Advertise and improve sage -fixdoctest > [Reviewed by Mike Hansen] > #6669: Martin Raum: Homomorphisms from matrix groups don't have to > have matrix groups as codomain [Reviewed by Robert Bradshaw] > #6760: Robert Bradshaw: error in quaternion algebra ideal basis > [Reviewed by Alex Ghitza] > #6803: Golam Mortuza Hossain: Implement symbolic Kronecker delta and > also make current signum (sgn) symbolic [Reviewed by Karl-Dieter > Crisman] > #7023: Robert Bradshaw: Upgrade to Cython 0.11.3 [Reviewed by Mike Hansen] > #7036: David Kirkby: rubiks ignores CXX and uses g++ even if CXX is > Sun compiler [Reviewed by Mike Hansen] > #7190: Nathann Cohen: French translation: A Tour of Sage [Reviewed by > Dan Drake, Mike Hansen] > #7208: Florent Hivert: Refactorisation of families [Reviewed by > Nicolas M. Thiéry] > #7352: David Kirkby: Update prereq to version 0.5 [Reviewed by Mike Hansen] > #7395: Florent Hivert: The enumerated set of non negative integers ! > [Reviewed by Nicolas M. Thiéry] > #7396: Florent Hivert: Disjoint unions of enumerated sets. [Reviewed > by Nicolas M. Thiéry] > #7397: Florent Hivert: Updated Primes to the category system. > [Reviewed by Nicolas M. Thiéry] > #7401: Robert Marik: Derivative at a point is not translated into > Maxima [Reviewed by Karl-Dieter Crisman] > #7403: Florent Hivert: adds FiniteEnumeratedSet [Reviewed by Nicolas M. > Thiéry] > #7443: Florent Hivert: List all categories in the reference manual > [Reviewed by Nicolas M. Thiéry] > #7449: William Stein: Some doc request hangs sage eating all memory. > [Reviewed by Florent Hivert] > #7450: Alex Ghitza: implement is_prime() for ideals [Reviewed by > Martin Albrecht] > #7462: Kwankyu Lee: magma interface -- huge number of doctest failures > [Reviewed by Georg S. Weber] > #7478: Florent Hivert, Nicolas M. Thiéry: TestSuite improvements > [Reviewed by Nicolas M. Thiéry, Florent Hivert] > #7479: Mike Hansen: sage fails to integrate identity [Reviewed by > Karl-Dieter Crisman] > #7371: Alex Ghitza: rename quotient_group() to quotient() in > groups/perm_gps/perm
[sage-devel] Re: Sage 4.3.alpha0 released!
On 22 lis, 18:05, John Cremona wrote: > I built 4.3.alpha0 fine on two linux machines (32 and 64 bit) but on > both I get one failure: > > The following tests failed: > sage -t "devel/sage/sage/interfaces/maxima.py" > > Details below. > This has been explained in the first message which started this thread. Robert -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: Sage 4.3.alpha0 released!
On 22 lis, 22:38, Jaap Spies wrote: > Upgrading from 4.2.1 on Fedora 11, 32 bit I had the known issue with > interfaces/maxima.py This was my patch. I am very sorry for this and do not understand, why all tests passed on my computer when I tested this patch. Now I have the same issue. Robert -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: Sage and commercial software
On 24 lis, 07:25, Martin Rubey wrote: > "Dr. David Kirkby" writes: > > > I find it hard to believe Sage will not have a negative impact on the > > sales of Mathematica, but I certainly hope Sage does not put Wolfram > > Research out of business. I very much doubt it will either. > > I am with your hope (how to say this properly?). At any rate, I think > its realistic though that sage will put > > maxima, fricas (axiom, open-axiom), reduce, giac, etc. > > eventually "out of business". Hello I do not think so. There are really big names (RJF, Robert Dodier and others) behind Maxima. As I understand from curricula vitae of some Sage develepers (E. Burcin, O. Certik, W. Stein, M. Hampton, K. D. Crisman, ..), the typical Sage developer is very young. Sage is wonderful project, but it is hard to believe that enthusiasm and diligence will beat the long experiences included in Maxima and Axiom in next couple of years - at least in calculus :) Sage is wonderfull and very very useful project - as well as Maxima and Axiom. I am sure that noone of them will put the others "out of bussines". Exactly like Firefox does not put out of bussines not only Opera and IE, but also Konqueror, Epiphany and even links and lynx! Robert Marik -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: simplify (sqrt(6)-sqrt(5))^-1
sage: a=(sqrt(6)-sqrt(5))^-1 sage: maxima(a).trigrat() sqrt(6)+sqrt(5) Now the question is, how to include trigrat function into Sage. I attempted to do something similar for logarithms and logcontract, logexpand in http://trac.sagemath.org/sage_trac/ticket/7334 - see the related dicussion on sage-devel (the link is in the discussion in the trac). As I understand the discussion, the simplification frontend is supposed to be rewritten in near future. Robert Marik On 10 pro, 06:21, kcrisman wrote: > On Dec 9, 5:07 pm, Harald Schilly wrote: > > > > > Hi, i got a "report a problem" comment about how > > simplify/full_simplify works. I think this could be sent to maxima > > upstream? > > > Well, here is the (rather educational) example: > > > sage: a=(sqrt(6)-sqrt(5))^-1 > > > sage: a > > -1/(sqrt(5) - sqrt(6)) > > > sage: a.full_simplify() > > 1/(sqrt(2)*sqrt(3) - sqrt(5)) > > > sage: a.simplify() > > -1/(sqrt(5) - sqrt(6)) > > Before doing that, note that the Sage rep probably treats the > denominator separately somehow. Also, since full_simplify() calls a > whole heck of a lot of things, they may cancel each other out in this > case - it would be worth trying a few of the simplify_blah separately; > unfortunately, I can't do that right now. Anyway, let's not assume > it's Maxima until we're sure :) > > - kcrisman -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: bug in simplifying expressions
Seems that this comes from Maxima. Look at this sage: fu=maxima(k6).fullratsimp().sage();fu -12*(3*(28960879780288*sqrt(2) + 49414857768735)*sqrt(3) - 150485145634059*sqrt(2) - 256767132912716)/(3*(40774373203317*sqrt(2) - 90564557902141)*sqrt(3) - 211869858104760*sqrt(2) + 470587246954565) sage: N(fu) 6.00 sage: N(k6) 139.406088405362 sage: tr=maxima(k6).trigrat().sage();tr 9*(sqrt(2) + 2)*sqrt(3) + 27*sqrt(2) + 48 sage: N(tr) 139.406088405362 Tested on Sage 4.3. and wxmaxima 0.8. Before reporting as Maxima bug, it would be nice to ask, if this is known problem and construct minimal example. Robert btw: in Maxima A:-18*(3*sqrt(2)+5)/(-4*(2*sqrt(3)-3)/(3^(3/2)-5)-(-8*(sqrt(3)-1)/(3^ (3/2)-5)+2*(4*(sqrt(3)-2)/(3^(3/2)-5)-1)*(5*sqrt(2)*(sqrt(3)-1)/(3^ (3/2)-5)-sqrt(2))/(5*sqrt(2)*(sqrt(3)-2)/(3^(3/2)-5)-2^(3/2)+3)+1)* ((sqrt(3)-2)*(5*sqrt(2)*(2*sqrt(3)-3)/(3^(3/2)-5)+3*2^(3/2)-9)/((5*sqrt (2)*(sqrt(3)-2)/(3^(3/2)-5)-2^(3/2)+3)*(3^(3/2)-5))-(2*sqrt(3)-3)/(3^ (3/2)-5))/(2*(sqrt(3)-2)*(5*sqrt(2)*(sqrt(3)-1)/(3^(3/2)-5)-sqrt(2))/ ((5*sqrt(2)*(sqrt(3)-2)/(3^(3/2)-5)-2^(3/2)+3)*(3^(3/2)-5))-2*(sqrt (3)-1)/(3^(3/2)-5)+1)+(4*(sqrt(3)-2)/(3^(3/2)-5)-1)*(5*sqrt(2)*(2*sqrt (3)-3)/(3^(3/2)-5)+3*2^(3/2)-9)/(5*sqrt(2)*(sqrt(3)-2)/(3^(3/2)-5)-2^ (3/2)+3)-3); A,numer; this gives 139. b:radcan(A); b,numer;- this gives 16 b:xthru(A) c:radcan(b) c,numer -- this gives 139 b:trigrat(A) b,numer --- gives 139 On 10 pro, 00:40, mhampton wrote: > I was trying to simplify a somewhat complicated expression involving > two square roots, and seem to have found bugs in how sage parses > things from sympy and maxima. At least, Ondrej checked and sympy > handles things fine, the answer gets corrupted somehow in sage. I > suspect the same is true for maxima but I haven't checked. > > A worksheet with the expression in question is at: > > http://sagenb.org/home/pub/1232/ > > Before filiing a ticket I am wondering if this is a known problem at > all. > > -Marshall -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: bug in simplifying expressions
O.K. so the magic is Maxima flag algebraic=true, as explained in http://groups.google.cz/group/sage-devel/t/4928c36765ff6972 On 10 pro, 07:38, "ma...@mendelu.cz" wrote: > Seems that this comes from Maxima. Look at this > -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] inequaliites -1
Dear sage-devel I tried to use plot_region as follows plot_region(-1http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Multiplying inequality by negative number
Dear sage-devel this is doctested in relation.py sage: f = x + 3 < y - 2 sage: f*(-1) -x - 3 < -y + 2 Is this really intended behavior? Shouldnt the answer be the following? sage: f*(-1) -x - 3 > -y + 2 But what about f*(a) or f*(x-2)? Should Sage return this? (-x-3)*(x-2)<(2-y)*(x-2) Or raise a warning that the inequalities are not equivalent. Or refuse computation if the sign of the expression which multiplies inequality cannot be determined? Or simply we assume that the user is not high school student and she/he knows what she/he is doing? Is there any opinion to this? Many thanks Robert Marik -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: simplify (sqrt(6)-sqrt(5))^-1
On 10 pro, 11:02, Harald Schilly wrote: > > (%i3) ratsimp(a), algebraic=true; > > Ok, is it wise to do this by default if called from sage? Not sure (could it break something in integration for example?) but without this we have bug described at http://groups.google.cz/group/sage-devel/browse_thread/thread/1220492cabd79c7f R. > > H -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: simplify (sqrt(6)-sqrt(5))^-1
Great, thanks for explanation. Robert On 10 pro, 13:30, andrejv wrote: > > I don't think there is a bug there. It's just that one form is harder > to compute numerically because of rounding errors. > -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: MathJax: the next version of jsmath
On 15 pro, 08:47, Jason Grout wrote: > If you want to see a preview of the MathJax, next version of jsmath, > which Davide has been working on for a while, go to: > > http://www.mathjax.com/?page_id=13 > I have scattered tee in Firefox (2.0) and very bad rendering in Opera (9.63) Do you have in MathJax better math rendering than in jsmath? Thanks Robert -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: announcement: Maxima 5.20
On 21 pro, 09:21, cch wrote: > Maxima-5.20.1 with clisp version works on my linux-32 Sage-4.2. Isn't clisp the slowest option? Robert > > cch -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] broken jsmath image fonts with Sage 4.3
Dear Sage devel jsmath image fonts seem to be broken for Sage 4.3 (jsmath-image- fonts-1.4.p2). Any idea what hapened? Robert Marik -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: broken jsmath image fonts with Sage 4.3
On 27 pro, 23:06, "ma...@mendelu.cz" wrote: > Dear Sage devel > > jsmath image fonts seem to be broken for Sage 4.3 (jsmath-image- > fonts-1.4.p2). Any idea what hapened? > > Robert Marik O.K. I found the source problem. There is bad path. The install script has the following lines if [ ! -d "$SAGE_ROOT/local/lib/python2.6/site-packages/sagenb" ]; then # user is using an old version of sage before the new notebook. install_dir="$SAGE_ROOT/local/notebook/javascript/jsmath" else if [ ! -d "$SAGE_ROOT/local/lib/python2.6/site-packages/sagenb/ data/jsmath" ]; then # pre-#7196 new notebook install_dir="$SAGE_ROOT/local/lib/python2.6/site-packages/ sagenb/data/javascript/jsmath" else install_dir="$SAGE_ROOT/local/lib/python2.6/site-packages/ sagenb/data/jsmath" fi fi but the path for sage notebook changed from /local/lib/python2.6/site-packages/sagenb/ to /local/lib/python2.6/site-packages/sagenb-0.4.8-py2.6.egg/sagenb/ So perhaps the lines should look like CASE 1: if [ ! -d "$SAGE_ROOT/local/lib/python2.6/site-packages/sagenb-0.4.8- py2.6.egg/sagenb" ]; then # user is using an old version of sage before the new notebook. install_dir="$SAGE_ROOT/local/notebook/javascript/jsmath" else if [ ! -d "$SAGE_ROOT/local/lib/python2.6/site-packages/ sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath" ]; then # pre-#7196 new notebook install_dir="$SAGE_ROOT/local/lib/python2.6/site-packages/ sagenb-0.4.8-py2.6.egg/sagenb/data/javascript/jsmath" else install_dir="$SAGE_ROOT/local/lib/python2.6/site-packages/ sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath" fi fi or simply (if we prefer the latest version) CASE 2: install_dir="$SAGE_ROOT/local/lib/python2.6/site-packages/ sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath/" Are there any suggestions from developers? Which case should be used in new spkg? Case 1 or case 2? Thanks Robert -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] bug in sagenb - deleting and stopping worksheet does not work
Dear sage-devel, can you confirm this behavior of sage notebook as a bug? when in Home (i.e. I have a list of worksheets) in folder Active, with one worksheet running * If I check the box of running worksheet and click Stop, nothing happens. Reloading page shows worksheet still as running. * If I check the box at worksheet wich does not run and click delete, nothing happens. Reloading of the page shows that the worksheet is still there. The same applies for Archive button. Tested on Fireofx in Windows Vista, Sage runs in a virtual vmware server at Debian Lenny. Thank you Robert -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: bug in sagenb - deleting and stopping worksheet does not work
On 28 pro, 07:39, Pat LeSmithe wrote: > > Which versions of Firefox and Sage? Tested on Windows Vista (Firefox 3.0.16, K-meleon, Opera) and Debian (Epiphany) on two servers with Sage 4.3 (sagenb.org and sage server at Mendel university - sage compiled from sources) The buttons Archive, Delete and Stop do no work. Can someone else reproduce the problem or confirm that tese buttons work for her/him? Many thanks Robert -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: sage-4.3
On 28 pro, 11:01, pipedream wrote: > But when I open a worksheet, or when I click File>Print in the > notebook menu, I still get > "It looks like jsMath failed to set up properly (error code -7). I > will try to keep going, but it could get ugly." > What happens if you switch to jsmath image fonts in the worksheet? (clik the small jsmath button on the bottom right of the browser window and choose options and image fonts. Does it work for you? the math formulas are in black now.) Robert -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: sage-4.3
Do you have font files in right directory? Does the listing of the
directory look like this?
(you may need to customise the begining of the path)
[ma...@um-bc107 ../devel/sage/sage/misc]$ ls -l /opt/sage-4.3/local/
lib/python2.6/site-packages/sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath/
fonts/
total 32
drwxr-xr-x 4 marik marik 4096 Jan 10 2006 cm-fonts
drwxr-xr-x 4 marik marik 4096 Aug 15 2005 cmbx10
drwxr-xr-x 4 marik marik 4096 May 5 2005 cmex10
drwxr-xr-x 4 marik marik 4096 May 5 2005 cmmi10
drwxr-xr-x 4 marik marik 4096 May 5 2005 cmr10
drwxr-xr-x 4 marik marik 4096 May 5 2005 cmsy10
drwxr-xr-x 4 marik marik 4096 Aug 15 2005 cmti10
drwxr-xr-x 4 marik marik 4096 Dec 26 23:50 msbm10
Robert
On 28 pro, 11:19, Jan Groenewald wrote:
> Hi
>
> On Mon, Dec 28, 2009 at 02:08:30AM -0800, ma...@mendelu.cz wrote:
> > What happens if you switch to jsmath image fonts in the worksheet?
> > (clik the small jsmath button on the bottom right of the browser
> > window and choose options and image fonts. Does it work for you? the
> > math formulas are in black now.)
>
> I have one cell with show(integrate(x^2,x))
>
> It shows something like
>
> 1 3
> x
> 3
>
> When I choose jsmath>options>image fonts (it was set to images for symbols
> only)
> then the above output changes to
>
> \frac{1}{3} \, x^{3}
>
> and the jsmath popup error persists.
>
> And it prints like that, LaTeX code, whether printing
> from the jsmath control panel or from the notebook menu.
>
> regards,
> Jan
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[sage-devel] two suggestions to jsmath
Dear sage devel
I have two suggestions for jsmath in
1. The text \newcommand{\Bold}[1]{\mathbf{#1}} is inserted to each TeX
formula shown by "show" command. Why not to define this command in
preamble? Something like inserting into preamble
jsMath.Macro('Bold','\\mathbf{#1}',1)
2. What about to insert \displaystyle into each TeX expression before
pasing it to the jsmath?
Are there any objections for not to do this? Is the correct way to
achieve the second task to change the code in latex.py (I added simply
two \displaystyle strings, the experimental patch is at
http://user.mendelu.cz/marik/temp/13536.patch )
Thanks
Robert
class JSMath:
..
def eval(self, x, globals=None, locals=None, mode='display'):
r"""
Render LaTeX input using JSMath. This returns
a :class:`JSMathExpr`.
...
"""
# in JSMath:
# inline math: ...
# displaymath: ...
from sage.misc.latex_macros import
sage_configurable_latex_macros
if 'display' == mode:
return JSMathExpr(''
+ ''.join
(sage_configurable_latex_macros)
+ _Latex_prefs._option['macros']
+ '\displaystyle %s'%x)
elif 'inline' == mode:
return JSMathExpr(''
+ ''.join
(sage_configurable_latex_macros)
+ _Latex_prefs._option['macros']
+ '\displaystyle %s'%x)
else:
# what happened here?
raise ValueError, "mode must be either 'display' or
'inline'"
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[sage-devel] Re: sage-4.3
Hi, I would try to copy manualy the directories cmbx10 cmex10 cm- fonts cmmi10 cmr10 cmsy10 cmti10 to the directory where msbm10 is present. i.e. /usr/local/src/sage-4.3/local/lib/python2.6/site- packages/sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath/fonts I did not test new spkg (...p3.spkg) for jsimage fonts, since I did this move for my two installation and this worked. See http://groups.google.cz/group/sage-devel/browse_thread/thread/82304cb7adbb22f9 btw: Are you sure that you installed the spkg from http://sage.math.washington.edu/home/mpatel/trac/7778/jsmath-image-fonts-1.4.p3.spkg ? Robert On 28 pro, 11:50, Jan Groenewald wrote: > Hi > > No, it is in another place to yours. > /usr/local/src/sage-4.3/local/notebook/javascript/jsmath/fonts/ > instead of > /usr/local/src/sage-4.3/local/lib/python2.6/site-packages/sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath/fonts > > 0 r...@muizenberg:~/bin#ls > /usr/local/src/sage-4.3/local/notebook/javascript/jsmath/fonts/ > cmbx10 cmex10 cm-fonts cmmi10 cmr10 cmsy10 cmti10 > 0 r...@muizenberg:~/bin#ls > /usr/local/src/sage-4.3/local/notebook/javascript/jsmath/fonts/ > cmbx10 cmex10 cm-fonts cmmi10 cmr10 cmsy10 cmti10 > 0 r...@muizenberg:~/bin#find > /usr/local/src/sage-4.3/local/notebook/javascript/jsmath/fonts/|wc -l > 20304 > 0 r...@muizenberg:~/bin#du -hs > /usr/local/src/sage-4.3/local/notebook/javascript/jsmath/fonts/ > 80M /usr/local/src/sage-4.3/local/notebook/javascript/jsmath/fonts/ > 0 r...@muizenberg:~/bin# > 0 r...@muizenberg:~/bin#ls > /usr/local/src/sage-4.3/local/lib/python2.6/site-packages/sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath/fonts > total 4.0K > 4.0K msbm10 > 0 r...@muizenberg:~/bin#find > /usr/local/src/sage-4.3/local/lib/python2.6/site-packages/sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath/fonts|wc > -l > 3257 > 0 r...@muizenberg:~/bin#du -hs > /usr/local/src/sage-4.3/local/lib/python2.6/site-packages/sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath/fonts > 13M > /usr/local/src/sage-4.3/local/lib/python2.6/site-packages/sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath/fonts > > I never tried to move these, they just are where the spkg's put them. > > My SAGE_ROOT is /usr/local/src/sage-4.3. > I do keep a symlink to it /usr/local/src/sage -> sage-x.y > so that I can keep desktop icons, other path dependent things across > releases rebuilt from source. > > regards, > Jan > -- > .~. > /V\ Jan Groenewald > /( )\ www.aims.ac.za > ^^-^^ -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: sage-4.3
The link to the last spkg seems to be broken, but the corresponding trac is http://trac.sagemath.org/sage_trac/ticket/7778 btw: related to your command r...@muizenberg:~/bin#du -hs /usr/local/src/sage-4.3/local/lib/ python2.6/site-packages/sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath/ fonts 13M /usr/local/src/sage-4.3/local/lib/python2.6/site-packages/ sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath/fonts This suggests that your fonts are on bad place. The value should be more than 90 MB Robert On 28 pro, 11:57, "ma...@mendelu.cz" wrote: > Hi, I would try to copy manualy the directories cmbx10 cmex10 cm- > fonts cmmi10 cmr10 cmsy10 cmti10 to the directory where msbm10 is > present. i.e. /usr/local/src/sage-4.3/local/lib/python2.6/site- > packages/sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath/fonts > > I did not test new spkg (...p3.spkg) for jsimage fonts, since I did > this move for my two installation and this worked. > Seehttp://groups.google.cz/group/sage-devel/browse_thread/thread/82304cb... > > btw: Are you sure that you installed the spkg > fromhttp://sage.math.washington.edu/home/mpatel/trac/7778/jsmath-image-fo... > ? > > Robert > > On 28 pro, 11:50, Jan Groenewald wrote: > > > Hi > > > No, it is in another place to yours. > > /usr/local/src/sage-4.3/local/notebook/javascript/jsmath/fonts/ > > instead of > > /usr/local/src/sage-4.3/local/lib/python2.6/site-packages/sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath/fonts > > > 0 r...@muizenberg:~/bin#ls > > /usr/local/src/sage-4.3/local/notebook/javascript/jsmath/fonts/ > > cmbx10 cmex10 cm-fonts cmmi10 cmr10 cmsy10 cmti10 > > 0 r...@muizenberg:~/bin#ls > > /usr/local/src/sage-4.3/local/notebook/javascript/jsmath/fonts/ > > cmbx10 cmex10 cm-fonts cmmi10 cmr10 cmsy10 cmti10 > > 0 r...@muizenberg:~/bin#find > > /usr/local/src/sage-4.3/local/notebook/javascript/jsmath/fonts/|wc -l > > 20304 > > 0 r...@muizenberg:~/bin#du -hs > > /usr/local/src/sage-4.3/local/notebook/javascript/jsmath/fonts/ > > 80M /usr/local/src/sage-4.3/local/notebook/javascript/jsmath/fonts/ > > 0 r...@muizenberg:~/bin# > > 0 r...@muizenberg:~/bin#ls > > /usr/local/src/sage-4.3/local/lib/python2.6/site-packages/sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath/fonts > > total 4.0K > > 4.0K msbm10 > > 0 r...@muizenberg:~/bin#find > > /usr/local/src/sage-4.3/local/lib/python2.6/site-packages/sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath/fonts|wc > > -l > > 3257 > > 0 r...@muizenberg:~/bin#du -hs > > /usr/local/src/sage-4.3/local/lib/python2.6/site-packages/sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath/fonts > > 13M > > /usr/local/src/sage-4.3/local/lib/python2.6/site-packages/sagenb-0.4.8-py2.6.egg/sagenb/data/jsmath/fonts > > > I never tried to move these, they just are where the spkg's put them. > > > My SAGE_ROOT is /usr/local/src/sage-4.3. > > I do keep a symlink to it /usr/local/src/sage -> sage-x.y > > so that I can keep desktop icons, other path dependent things across > > releases rebuilt from source. > > > regards, > > Jan > > -- > > .~. > > /V\ Jan Groenewald > > /( )\ www.aims.ac.za > > ^^-^^ -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: bug in sagenb - deleting and stopping worksheet does not work
I did more tests - Sage 4.2. is the last version where deleting and stopping workseehts via buttons from "Home" folder works for me. Tested on some personal installations as well as at https://sagenb.kaist.ac.kr (4.2.1 - does not work) http://uw.sagenb.org (4.2.1 - does not work) and http://www.sagenb.org/ (4.3 - does not work). Tested on various local OS (windows, several Linux installations) and various browsers (Firefox, Opera, K-Meleon). Is there anybody else here, who can either confirm this problem or anybody else who does not have any problems of this type? I started courses at January 4 wihch will use Sage and this is annoying. On the other had, it would be nice to work with version with fixed http://trac.sagemath.org/sage_trac/ticket/7756 Many thanks Robert Marik On 28 pro, 11:03, "ma...@mendelu.cz" wrote: > On 28 pro, 07:39, Pat LeSmithe wrote: > > > > > Which versions of Firefox and Sage? > > Tested on Windows Vista (Firefox 3.0.16, K-meleon, Opera) and Debian > (Epiphany) on two servers with Sage 4.3 (sagenb.org and sage server at > Mendel university - sage compiled from sources) > > The buttons Archive,Deleteand Stop do no work. Can someone else > reproduce the problem or confirm that tese buttons work for her/him? > > Many thanks > Robert -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: bug in sagenb - deleting and stopping worksheet does not work
THnks for your suggestions, On 31 pro, 04:26, Pat LeSmithe wrote: > On 12/30/2009 01:31 PM, ma...@mendelu.cz wrote: > > > I did more tests - Sage 4.2. is the last version where deleting and > > stopping workseehts via buttons from "Home" folder works for me. > > One or more of these problems may appear in many other browsers, too. > Could you try commenting out > > if not self.worksheet.is_published(): > self.worksheet.set_active(username) > > in > > SAGE_LOCAL/lib/python2.6/site-packages/sagenb-*/sagenb/notebook/twist.py > > and testing again in Firefox, say? (See WorksheetResource.__init__, > around line 516.) I did this change, run sage -b and then sage, but still have old behavior. > > A worksheet opened in a JavaScript-enabled tab or window pings the > server every ~10 seconds. The lines above reset the worksheet's "view" > to ACTIVE for the user who opened the worksheet. The worksheet will > then appear in that user's [refreshed] list of active worksheets. > > Another possible workaround is to close all tabs/windows with the > worksheet in question, before sending it to the Trash folder. Does not help either. And I do not understand why I have this issue on 4 different computers and nobody else reported such a problem Anyway, thank you for your help and have a nice happy new year :) Robert -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: bug in sagenb - deleting and stopping worksheet does not work
On 31 pro 2009, 09:22, "ma...@mendelu.cz" wrote: > > Does not help either. Does not help even if I use the install script in sagenb sources directory to install changewd version. Any other idea? Many thanks Robert -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: bug in sagenb - deleting and stopping worksheet does not work
On 1 led, 15:58, Pat LeSmithe wrote: > On 12/31/2009 06:14 PM, ma...@mendelu.cz wrote: > > > On 31 pro 2009, 09:22, "ma...@mendelu.cz" wrote: > >> Does not help either. > > Does not help even if I use the install script in sagenb sources > > directory to install changewd version. Any other idea? > > Just to gather a bit more information: > > Do the "Log" and "Help" links at the top of the "Home" page work? More > generally, are there other notebook features that aren't working as > expected? > Hi Pat, clicking Archive, Delete or Stop I get in Firefox 3.0.16 Error: X is null Source file: http://www.sagenb.org/javascript/sage/main.js Line: 374 Log and Help links work. I'll try to update Firefox and send more detailed answer. Chrome does not work either. However, we have rather old Firefox in our PC lab (stability is preffered) and it would be great to make workseehts work also on older browsers, as it was in Sage 4.2 Many thanks. Robert -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: bug in sagenb - deleting and stopping worksheet does not work
On 1 led, 19:50, "ma...@mendelu.cz" wrote: > Error: X is null > Source file:http://www.sagenb.org/javascript/sage/main.js > Line: 374 The same problem with Firefox 3.5.6 Robert -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: bug in sagenb - deleting and stopping worksheet does not work
On 1 led, 20:02, "ma...@mendelu.cz" wrote: > On 1 led, 19:50, "ma...@mendelu.cz" wrote: > > > Error: X is null > > Source file:http://www.sagenb.org/javascript/sage/main.js > > Line: 374 > > The same problem with Firefox 3.5.6 And the same error message also in Firefox (Iceweasel) 3.0.6 and Epiphany 2.22.3, both on Debian Lenny ma...@marikovi:~$ uname -a Linux marikovi 2.6.26-2-486 #1 Fri Aug 14 01:02:21 UTC 2009 i686 GNU/ Linux > > Robert -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: about sagenb-xx.spkg and translations
On 3 led, 17:08, Vincent D <20100.delecr...@gmail.com> wrote: > Hi, > > I aim to construct a french translation of the notebook (with french > tutorial) on > > http://sage.irem.univ-mrs.fr:8000 > > Is there any attempt of multi-language support for it ? Hi, this is not answer, simply comment. I think that it would be nice to allow localization of notebook. I have seen a notebook in korean, but do not know how the admin of the server achieved this. Robert -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] only part of expression is visible in notebook
Dear sage-devel
If I run (with checked button "Typeset")
maxima("taylor(z*sin(x*y), [x,y,z],[0,pi/2,1], 8)")
in notebook in Sage 4.3, the output window is too small and I can see
only small part of the expression. Is it a bug in CSS style or
somwhere else?
Robert
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[sage-devel] Unknown control sequence '\texttt'
Dear sage-devel
when doing in notebook
sage: show('x^2')
or
sage: show(type(factor))
I get error Unknown control sequence '\texttt'
When I try
sage:'x^2'
with checked "Typeset" button I get
\newcommand{\Bold}[1]{\mathbf{#1}}\hbox{x^2}
which is not valid LaTeX expression (supperscript outside math mode)
I think that this is a bug in Sage, Any idea where to fix it?
Thanks
Robert
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[sage-devel] broken show for unevaluated integrals
Dear sage-devel
the following (definite) integral is not evaluated by maxima and show
() command should return the same unevaluated integral in TeX
notation. I think this was the case in previous versions. On Sage 4.3.
I get th following
input: integrate(1/(1+sqrt(x)),x,0,1).show()
output: \int integrate\,{d \frac{1}{\sqrt{x} + 1}}
expected output: \int_0^1 \frac{..}{...} dx
What has changed?
Robert
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[sage-devel] problems with converting expression from Maxima
Hello all,
Sage changes expression which is converted from Maxima. As a
consequence, the linear term in taylor polynomial is allway expanded
into f'(a)*x+const instead of f'(a)*(x-a)+f(a).
Can someone explain this behavior? How to get rid of this?
See the code below and trac http://trac.sagemath.org/sage_trac/ticket/7472
Many thanks
Robert Marik
--
| Sage Version 4.3, Release Date: 2009-12-24 |
| Type notebook() for the GUI, and license() for information.|
--
sage: maxima("taylor(x^3,x,2,1)")
8+12*(x-2)
sage: maxima("taylor(x^3,x,2,1)").sage()
12*x - 16
sage: taylor(x^3,x,2,1)
12*x - 16
sage:
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[sage-devel] Re: sage-4.3.1.rc0 released!
On 16 led, 07:42, Robert Miller wrote: > Greetings! > > sage-4.3.1.rc0 is finally here. This should be a good base version for > Bug Days, and closes a good deal of tickets. I thought it would be > good to plan on an rc1 with just the ticket to fix building on OS X > 10.6 (thoughts?). Also, reverting #7818 fixed a good deal of build > problems(*). > Thanks. Binaries for current Debian are not available from (I think) Sage 4.3. Is Debian still supported? Will you build Sage 4.3.1 binaries for Debian Lenny? Thanks Robert Marik -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
