On Sep 1, 2009, at 8:58 PM, William Cauchois wrote:
> It seems to me that the error comes from feeding a function which uses
> i into fast_float (called by the plotting functions to compile the
> function to be plotted into an optimized form). I tried a simpler
> function using i and got the same
Ack! I checked with 4.1.1 and everything seems to work (except that it
won't print a pi symbol when typesetting is on, but that's not a big
deal). So move along, nothing to see here...
Dan
--
--- Dan Drake
- KAIST Department of Mathematical Sciences
--- http://mathsci.kaist.ac.kr/~dr
The following sequence of commands in the notebook...
x = var('x')
n = var('n')
assume(n>0)
integrate(x^n, x)
...results in "n+1" if I don't have the "Typeset" box checked, and if I
do have it checked, I sometimes get "\newcommand{\Bold}[1]{\mathbf{#1}}n
+ 1" and I sometimes get "
Thank you, Jason! Your guess was absolutely correct! I am running 64-
bit Firefox 3.5.2 on Suse 11.1, with an upgraded kernel 2.6.28.
Yes, John, you are right! I forgot to mention my OS and browser.
Thanks to both of you for the help. Replacing the jsmath fonts, per
Jason's recommendation abo
Hi Jan,
On Wed, Sep 2, 2009 at 2:31 PM, Jan Groenewald wrote:
> Is there a ticket to fix this? .sage sounds good.
This issue is now ticket #6861
http://trac.sagemath.org/sage_trac/ticket/6861
--
Regards
Minh Van Nguyen
--~--~-~--~~~---~--~~
To post to this
Hi
On Tue, Sep 01, 2009 at 06:33:59PM -0700, William A. Stein wrote:
> Note that this should be considered a workaround. It should be
> considered a bug that users without write permissions to the Sage
> install directory can't test their scripts.
> It would be much better for Sage to use te
Hi
On Wed, Sep 02, 2009 at 11:24:25AM +1000, Minh Nguyen wrote:
> > Is there then any control on the space used?
If they did have write (unadvisable) they could fill the disk
space with logs.
Jan
--
.~.
/V\ Jan Groenewald
/( )\www.aims.ac.za
^^-^^
--~--~-~--~~
On Sep 1, 2009, at 12:16 PM, Mikie wrote:
> I took out the eval and for some reason it is working.
> Robert, this is function in my API (AlgCalc)
> http://pirsqrt.com:1843/
> If I would give it to you would you show me how to get JSmath to
> work? I have talked to you before. You said you were
It seems to me that the error comes from feeding a function which uses
i into fast_float (called by the plotting functions to compile the
function to be plotted into an optimized form). I tried a simpler
function using i and got the same error:
sage: plot3d(x + y + i, (x, 0, 1), (y, 0, 1))
Traceb
Mani chandra wrote:
> Hi,
>
> There seems to be some issue with "simplify" when used in the
> following manner:
>
> sage: var('x, a, b')
> (x, a, b)
> sage: x = a + I*b
> sage: x.conjugate()
> conjugate(a) - I*conjugate(b)
> sage: x.conjugate().simplify()
> a - I*b
>
> Aren't (a, b) complex b
Hi,
There seems to be some issue with "simplify" when used in the
following manner:
sage: var('x, a, b')
(x, a, b)
sage: x = a + I*b
sage: x.conjugate()
conjugate(a) - I*conjugate(b)
sage: x.conjugate().simplify()
a - I*b
Aren't (a, b) complex by default?, then why is SAGE giving out a - I
On Sep 1, 2009, at 6:24 PM, Minh Nguyen wrote:
>
> Hi Jan,
>
> On Tue, Sep 1, 2009 at 11:37 PM, Jan Groenewald wrote:
>
>
>
>> Is "sage -t" used for testing one's own code?
>
> Yes.
>
>
>> Should /usr/local/src/sage-4.1.1/tmp/tmp be world-writeable?
>
> No since from a security point of view yo
linuxgus wrote:
> Hello all.
>
> Here is a simple three-liner in notebook:
>
> r=var('rho')
> A=matrix(2,[sqrt(3), 1, -1, sqrt(3)])/2
> R=matrix(2,[1,r,r,1])
> show( simplify(expand(A*R*A.transpose())) )
>
> It does the math correctly, but instead of displaying actual rhos
> ( ρ ) in the fina
Hi Jan,
On Tue, Sep 1, 2009 at 11:37 PM, Jan Groenewald wrote:
> Is "sage -t" used for testing one's own code?
Yes.
> Should /usr/local/src/sage-4.1.1/tmp/tmp be world-writeable?
No since from a security point of view you don't want regular users to
write anything there. Think of that tmp
Ok mr. Nguyen. I will try it. Thank you.
On Wed, 2009-09-02 at 10:21 +1000, Minh Nguyen wrote:
> Hi Afonso,
>
> On Wed, Sep 2, 2009 at 5:18 AM, Afonso Henriques Silva
> Leite wrote:
> >
> > I downloaded sage-4.1.1-linux-Ubuntu_9.04-i686-Linux.tar.gz to my
> > desktop and untar it there. My exper
Thanks in advance! I will try this tomorrow.
On Tue, 2009-09-01 at 17:23 -0400, David Joyner wrote:
> On Tue, Sep 1, 2009 at 3:18 PM, Afonso Henriques Silva
> Leite wrote:
> >
> > I downloaded sage-4.1.1-linux-Ubuntu_9.04-i686-Linux.tar.gz to my
> > desktop and untar it there. My experience with
On Sep 1, 5:19 pm, linuxgus wrote:
> Hello all.
>
> Here is a simple three-liner in notebook:
>
> r=var('rho')
> A=matrix(2,[sqrt(3), 1, -1, sqrt(3)])/2
> R=matrix(2,[1,r,r,1])
> show( simplify(expand(A*R*A.transpose())) )
>
> It does the math correctly, but instead of displaying actual rhos
>
Hi Afonso,
On Wed, Sep 2, 2009 at 5:18 AM, Afonso Henriques Silva
Leite wrote:
>
> I downloaded sage-4.1.1-linux-Ubuntu_9.04-i686-Linux.tar.gz to my
> desktop and untar it there. My experience with linux is a little
> limited.
> The readme file says that if a binary file was downloaded, it was on
Hello all.
Here is a simple three-liner in notebook:
r=var('rho')
A=matrix(2,[sqrt(3), 1, -1, sqrt(3)])/2
R=matrix(2,[1,r,r,1])
show( simplify(expand(A*R*A.transpose())) )
It does the math correctly, but instead of displaying actual rhos
( ρ ) in the final matrix, it displays accented capital
On Tue, Sep 1, 2009 at 3:18 PM, Afonso Henriques Silva
Leite wrote:
>
> I downloaded sage-4.1.1-linux-Ubuntu_9.04-i686-Linux.tar.gz to my
> desktop and untar it there. My experience with linux is a little
> limited.
...
> I need a lot more information than these read me files...
>
Can you compi
I took out the eval and for some reason it is working.
Robert, this is function in my API (AlgCalc)
http://pirsqrt.com:1843/
If I would give it to you would you show me how to get JSmath to
work? I have talked to you before. You said you were too busy. I
have loaded load.js, but when it goes fo
Yes, Robert eval is doing the rounding. How do I fix it?
On Sep 1, 12:31 pm, Mikie wrote:
> I have tried SR. I get a malformed value. Yes, I understand the
> problem with eval. Do you have any suggestions on how to get the
> right value into maxima.solve?
>
> On Sep 1, 11:32 am, Robert Brads
I have tried SR. I get a malformed value. Yes, I understand the
problem with eval. Do you have any suggestions on how to get the
right value into maxima.solve?
On Sep 1, 11:32 am, Robert Bradshaw
wrote:
> On Tue, 1 Sep 2009, Mikie wrote:
>
> > When I run the server with the function above and
I downloaded sage-4.1.1-linux-Ubuntu_9.04-i686-Linux.tar.gz to my
desktop and untar it there. My experience with linux is a little
limited.
The readme file says that if a binary file was downloaded, it was only
necessary to print ./sage command to get things ok, but it wasn't that
easy.
When I use
On Tue, 1 Sep 2009, Mikie wrote:
>
> When I run the server with the function above and the following string
> from a text box I get
> [y=-1,x=0]. The string is "[3*x-y-1,x+(1/3)*y]"
>
> It is changing the input value to [3*x-y-1,x]
1/3 = 0 in Python. Also, I hope you realize how dangerous
eval(
When I run the server with the function above and the following string
from a text box I get
[y=-1,x=0]. The string is "[3*x-y-1,x+(1/3)*y]"
It is changing the input value to [3*x-y-1,x]
On Sep 1, 10:38 am, Mikie wrote:
> Sorry, wrong function
>
> def MSolveSys(syss):
> eqns=eval(syss)
>
Sorry, wrong function
def MSolveSys(syss):
eqns=eval(syss)
solns=maxima.solve(eqns)
return solns
On Sep 1, 10:31 am, Jason Grout wrote:
> Robert Bradshaw wrote:
> > On Sep 1, 2009, at 9:17 AM, Mikie wrote:
>
> >> Here is function I am using to solve systems of linear equations.
>
> >>
Robert Bradshaw wrote:
> On Sep 1, 2009, at 9:17 AM, Mikie wrote:
>
>> Here is function I am using to solve systems of linear equations.
>>
>> def MSolveSys(syss):
>>eqns=eval(syss)
>>solns=maxima.solve(syss)
>>return solns
>>
>> Works great in the notebook, but when I put it in a Pyt
Mikie wrote:
> Here is function I am using to solve systems of linear equations.
>
> def MSolveSys(syss):
>eqns=eval(syss)
>solns=maxima.solve(syss)
>return solns
>
> Works great in the notebook, but when I put it in a Python script it
> rounds the coeficients of the variables and th
On Tue, Sep 1, 2009 at 9:23 AM, Rolandb wrote:
>
>
>
> On 1 sep, 11:08, Robert Bradshaw wrote:
> > On Aug 29, 2009, at 11:05 PM, Rolandb wrote:
> >
> > > Hi,
> >
> > > Using math.log has a disadvantage; it is less accurate.
> >
> > > sage: print n(math.log(2),100)
> > > sage: print n(log(2),100)
On Sep 1, 2009, at 9:23 AM, Rolandb wrote:
> On 1 sep, 11:08, Robert Bradshaw wrote:
>> On Aug 29, 2009, at 11:05 PM, Rolandb wrote:
>>
>>> Hi,
>>
>>> Using math.log has a disadvantage; it is less accurate.
>>
>>> sage: print n(math.log(2),100)
>>> sage: print n(log(2),100)
>>> 0.693147180559945
On 1 sep, 11:08, Robert Bradshaw wrote:
> On Aug 29, 2009, at 11:05 PM, Rolandb wrote:
>
> > Hi,
>
> > Using math.log has a disadvantage; it is less accurate.
>
> > sage: print n(math.log(2),100)
> > sage: print n(log(2),100)
> > 0.69314718055994528622676398300
> > 0.693147180559945309417232121
On Sep 1, 2009, at 9:17 AM, Mikie wrote:
>
> Here is function I am using to solve systems of linear equations.
>
> def MSolveSys(syss):
>eqns=eval(syss)
>solns=maxima.solve(syss)
>return solns
>
> Works great in the notebook, but when I put it in a Python script it
> rounds the coefic
Here is function I am using to solve systems of linear equations.
def MSolveSys(syss):
eqns=eval(syss)
solns=maxima.solve(syss)
return solns
Works great in the notebook, but when I put it in a Python script it
rounds the coeficients of the variables and thus produces bad
solutions.
Is
On Tue, Sep 1, 2009 at 7:29 AM, Koch Peer-Joachim <
koch.peerjoac...@googlemail.com> wrote:
> Hi,
>
> we are running a sage notebook on a pc in our network. Sage is running
> under a dedicated uid.
> We had to restart the server and I've restarted sage and the notebook.
> However all worksheets a
Hi,
we are running a sage notebook on a pc in our network. Sage is running
under a dedicated uid.
We had to restart the server and I've restarted sage and the notebook.
However all worksheets are now gone. All the files seem's to be there, but
nothing
is shown after a restart.
What must be done
Hi All,
I have a system-wide sage install for all users.
The source lives in /usr/local/src and all of it is owned
by root.root. I chown it after install so that it does not
have another user's permissions. A user had this problem:
On Tue, Sep 01, 2009 at 02:41:54PM +0200, Dirk Laurie wrote:
>
On Aug 29, 2009, at 11:05 PM, Rolandb wrote:
> Hi,
>
> Using math.log has a disadvantage; it is less accurate.
>
> sage: print n(math.log(2),100)
> sage: print n(log(2),100)
> 0.69314718055994528622676398300
> 0.69314718055994530941723212146
Yes, it is. Accuracy vs. speed is a common tradeoff on
On Sep 1, 2009, at 1:34 AM, Nathann Cohen wrote:
> Hello everybody !!!
>
> I would like to test the functions I write to learn which
> instructions take most of the time, and if possible find a way
> around.. There may not be some tool for this in Sage, but perhaps
> it already exists for P
Hello everybody !!!
I would like to test the functions I write to learn which instructions take
most of the time, and if possible find a way around.. There may not be some
tool for this in Sage, but perhaps it already exists for Python Do you
know about such a thing ? :-)
Nathann
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