[sage-devel] Re: [debian] Strange numerical errors in sage's libpari code

2015-02-18 Thread maldun
Maybe I'm missing something here, but aren't these test also badly stated? This would be a good example why some tolerance should be included if one test something with floating points: Every small change in some flop somewhere in the code will lead to a fail. I personally wouldn't call something

[sage-devel] Re: OpenBLAS beats MK for larger problems

2015-02-15 Thread maldun
tions (specifically, matrix-vector). > > > > > On Sunday, February 15, 2015 at 3:37:25 PM UTC+1, maldun wrote: >> >> Hi! >> >> Maybe this may be interesting for future consideration with respect which >> blas implementation to choose: >> >>

[sage-devel] Re: OpenBLAS beats MK for larger problems

2015-02-15 Thread maldun
Sorry I mean MKL, somehow the I lost the L ... -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send

[sage-devel] OpenBLAS beats MK for larger problems

2015-02-15 Thread maldun
Hi! Maybe this may be interesting for future consideration with respect which blas implementation to choose: https://github.com/xianyi/OpenBLAS/issues/322 It appears that OpenBLAS seems to match more and more MKL performance. -- You received this message because you are subscribed to the Goog

Re: [sage-devel] Re: SageMathCloud now open source

2014-12-12 Thread maldun
Hi! On Thursday, December 11, 2014 10:47:20 PM UTC+1, William wrote: > > On Thu, Dec 11, 2014 at 1:28 PM, maldun > > wrote: > > That's great to hear! > > > > Although I don't know If GPL3 is the best choice ... > > I actually didn't have an

[sage-devel] Re: SageMathCloud now open source

2014-12-11 Thread maldun
That's great to hear! Although I don't know If GPL3 is the best choice ... Are there already alternative plans to make funding from SMC, since closed Source is not an option anymore? (I think this topic is important, since resources are a major issue) On Thursday, December 11, 2014 6:47:05 PM U

Re: [sage-devel] Re: User Survey

2014-12-09 Thread maldun
lliam wrote: > > On Tue, Dec 9, 2014 at 12:14 PM, maldun > > wrote: > > Hi! > > > > Concerning the support problematic for ARM, Windows etc: > > > > We should ask ourselfs if we need a more minimal Sage distribution, > which is > > easily po

Re: [sage-devel] Re: User Survey

2014-12-09 Thread maldun
Hi! Concerning the support problematic for ARM, Windows etc: We should ask ourselfs if we need a more minimal Sage distribution, which is easily portable to ALL Platforms. The main problem with Sage on many platforms is, that some packages often fail to build. Especially C based packages as tr

Re: [sage-devel] Re: What are we unable to do right now ?

2014-12-05 Thread maldun
ch we should not underestimate. On Friday, December 5, 2014 9:39:55 PM UTC+1, William wrote: > > On Fri, Dec 5, 2014 at 12:19 PM, maldun > > wrote: > > What we still don't have is a working windows version. This is still a > big > > blocker for being succes

[sage-devel] Re: What are we unable to do right now ?

2014-12-05 Thread maldun
What we still don't have is a working windows version. This is still a big blocker for being succesfull. On Friday, December 5, 2014 8:17:44 AM UTC+1, Nathann Cohen wrote: > > Helloo everybody ! > > I am preparing some Sage talk, and I wanted to say at some point: > "Honestly we are not that

[sage-devel] User Survey

2014-12-05 Thread maldun
Hi! Since William's statement, that Sage failed as a real alternative to the 4 MMs there are currently some threads with thoughts on improving Sage. But till now I see only discussions among the devlopers. But I think we should also ask the users. The most of us here are scientists. But to make

[sage-devel] Re: Mention of Sage in a book review

2014-12-05 Thread maldun
Nice arcticle! I totally agree with his comments about Matlab. It was written as fast Fortran interface and still has this feeling. Object oriented programming is a joke in Matlab. I used Matlab 2009 and measured 1ms(!) time for access to one simple class member. (Comparison: Pyton needs some µs

Re: [sage-devel] Re: Maple versus Mathematica

2014-12-02 Thread maldun
TC+1, Dr. David Kirkby (Kirkby Microwave Ltd) wrote: > > On 27 Nov 2014 20:51, "maldun" > wrote: > > > I personally a comparison of sage with the other Systems is quite hard, > since all of the other 4Ms concentrate more or less > > on particular fields of mathe

[sage-devel] Re: The "code of conduct" is getting out of hand - please stop for 2 weeks.

2014-11-29 Thread maldun
+1 As already said in an other thread: I don't understand this high waves of emotion, and I don't think it is healthy for the community -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from

[sage-devel] Re: proposed amendment to code of conduct

2014-11-28 Thread maldun
On Friday, November 28, 2014 11:37:20 PM UTC+1, Simon King wrote: > > Hi Maldun, > > On 2014-11-28, maldun > wrote: > > So far as I understand, this code/guidline/whatever does not serve as a > > law, or is written in stone, > > nor does it say: "If

Re: [sage-devel] Re: proposed amendment to code of conduct

2014-11-28 Thread maldun
On Friday, November 28, 2014 11:04:08 PM UTC+1, vdelecroix wrote: > > Hi, > > 2014-11-28 15:48 UTC−06:00, maldun >: > > Hi all! > > > > I quite watched this discussion for this so called code of conduct. > There > > are a lot of > > oppo

[sage-devel] Re: proposed amendment to code of conduct

2014-11-28 Thread maldun
Hi all! I quite watched this discussion for this so called code of conduct. There are a lot of opponents of this idea and I wonder why. So far as I understand, this code/guidline/whatever does not serve as a law, or is written in stone, nor does it say: "If you don't behave as stated in the cod

[sage-devel] Re: Maple versus Mathematica

2014-11-27 Thread maldun
One of the most important differences between Sage and Mathematica, is that no one of the developers has such a big ego than Stephen Wolfram. It even got it's own music theme: https://mollyrocket.com/11235 And we all know that Python will never decipher the universe like the Wolfram language wi

[sage-devel] Re: Bug in abs(I*x).diff(x)

2014-11-13 Thread maldun
The only clean solution for this behaviour would be a warning e.g: "Warning: This Identity holds only almost everywhere!" But I don't know if it's worth the effort ... -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group

[sage-devel] Re: Bug in abs(I*x).diff(x)

2014-11-13 Thread maldun
> > > This is in some sense good, since we don't have to care about the > derivative at zero, > but in an other sense it is not so good, since the subdifferential ∂abs(0) > = [0,1] is a bounded and with this definition one could come to the false > conclusion that abs(x) > has a pole, althoug

[sage-devel] Re: Bug in abs(I*x).diff(x)

2014-11-13 Thread maldun
Traceback (most recent call last) in () > 1 f(x=Integer(0)) /home/maldun/sage/sage-6.3/local/lib/python2.7/site-packages/sage/symbolic/expression.so in sage.symbolic.expression.Expression.__call__ (build/cythonized/sage/symbolic/expression.cpp:21933)() /home/maldun/sage/sage-6.3/local/

[sage-devel] Legendre_Q and the Branch of the logarithm

2014-09-15 Thread maldun
Hi! On trac http://trac.sagemath.org/ticket/16813 Ralf Stephan and I come to the question which representation of legendre_Q and gen_legendre_Q is better suited, since it is not unique due to the complex logarithm. We have several choices to represent the logorithm appering in the formula of le

Re: [sage-devel] reddit'ers at it again discussing sage...

2014-08-27 Thread maldun
> > Well, I think you didn't understand me or I don't understand you. > There is already numpy, scipy and matplotlib in Sage and there is no > obstruction whatsoever to use it. One has to turn off the preparser, > otherwise you might see really odd errors. > > > Oversaw that comment ... No it

Re: [sage-devel] reddit'ers at it again discussing sage...

2014-08-27 Thread maldun
I know that, but it frightens me. I have no idea how to enter those characters ... Without knowing anything, I bluntly assume that Sage will have a Python-2-only policy for variable names. -- H Nothing simpler than that: https://code.google.com/p/ibus/wiki/LaTeX based on Ibus: https://cod

Re: [sage-devel] reddit'ers at it again discussing sage...

2014-08-27 Thread maldun
On Wednesday, August 27, 2014 7:00:51 PM UTC+2, Harald Schilly wrote: > > > > On Wednesday, August 27, 2014 4:16:46 PM UTC+2, bluescarni wrote: >> >> My impression is that the Scipy-Numpy-Sympy ecosystem is a better fit >> than Sage, at least for numerical purposes. >> > > Mine too, and despite S

Re: [sage-devel] Re: How practical/useful would a native windows subset be?

2014-08-25 Thread maldun
There a reports on Trac that sage 5.9 worked fine on windows 7 64-Bit. http://trac.sagemath.org/wiki/CygwinPort So it is no science-fiction to say that sage on Cygwin is possible. Indeed it will not come without some trouble and hard work. On Monday, August 25, 2014 1:48:41 PM UTC+2, Dr. David Ki

[sage-devel] Re: William Stein says "Sage has overall failed"

2014-08-25 Thread maldun
And I forgot: It is defenitely better than the 5th M, namely MatCAD! -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To p

[sage-devel] Re: William Stein says "Sage has overall failed"

2014-08-25 Thread maldun
Sage has definietly not failed! I use it as alternative to Matlab and Mathematica for years now, and what the true strength of Sage is not, that it is better than one of the 4M's, but is doing a equivalently good job in all those areas, which each of this programs is speciallized in! The one th

[sage-devel] Re: SageMathCloud / closed source / GPL / Spirit of Sage??

2014-08-25 Thread maldun
I don't think it's a bad idea to make something partly commercial. >From the moral point of view I may cite Richard Stallmann ( http://www.gnu.org/philosophy/selling.html ): > Many people believe that the spirit of the GNU Project is that you should > not charge money for distributing copies o

[sage-devel] Re: How practical/useful would a native windows subset be?

2014-08-25 Thread maldun
Hi! Python XY ( https://code.google.com/p/pythonxy/ )and WinPython (http://winpython.sourceforge.net/) do this for years now and are working properly. Maybe one can use this as a start since many of the needed prequisites are there. but why not concentrate on a working cygwin port, and bundle

[sage-devel] Re: User friendly output for divergant integrals/sum

2014-01-07 Thread maldun
+1 One could also go further and raise a PlusInfinitiyException or a MinusInfinityException and handle them correctly. On Monday, January 6, 2014 5:39:56 PM UTC+1, Gregory Bard wrote: > > Perhaps we could get the best of both worlds? > > We could throw a "divergent integral/sum exception" (that

Re: [sage-devel] Re: SymbolicPolynomial class

2013-12-21 Thread maldun
y, December 20, 2013 2:58:51 AM UTC-10, maldun wrote: >> >> Another more careful approach would be to start at the field of rational >> functions and extend it step by step with algebraic and transcendental >> functions, till we reach a field which is maximal under the

Re: [sage-devel] Re: SymbolicPolynomial class

2013-12-20 Thread maldun
Another more careful approach would be to start at the field of rational functions and extend it step by step with algebraic and transcendental functions, till we reach a field which is maximal under the available symbolic expressions. On Friday, December 20, 2013 9:26:22 AM UTC+1, maldun

Re: [sage-devel] Re: SymbolicPolynomial class

2013-12-20 Thread maldun
On Thursday, December 19, 2013 7:47:19 PM UTC+1, Nils Bruin wrote: > On Wednesday, December 18, 2013 11:04:22 PM UTC-10, maldun wrote: >> >> What I mean is that we should only allow expressions of meromorphic >> functions in the symbolic field, i.e. we would

Re: [sage-devel] Re: SymbolicPolynomial class

2013-12-19 Thread maldun
r 2013 09:04, maldun > wrote: > > The fact, that SR is not a field is interesting, the Kronecker delta > example > > on the ticket shows it quite well. But the problem originates from the > fact, > > that the Kronecker delta is not a continuous function. The r

Re: [sage-devel] Re: SymbolicPolynomial class

2013-12-19 Thread maldun
, John Cremona wrote: > > On 19 December 2013 09:04, maldun > wrote: > > The fact, that SR is not a field is interesting, the Kronecker delta > example > > on the ticket shows it quite well. But the problem originates from the > fact, > > that the Kronecker delta is

Re: [sage-devel] Re: SymbolicPolynomial class

2013-12-19 Thread maldun
The fact, that SR is not a field is interesting, the Kronecker delta example on the ticket shows it quite well. But the problem originates from the fact, that the Kronecker delta is not a continuous function. The ring of analytic functions is an Integral domain. Question: Should we define a subs

Re: [sage-devel] Re: SymbolicPolynomial class

2013-12-19 Thread maldun
> > Moreover, I feel very uncomfortable having an extra layer with > symbolic polynomial. Most of the time, the symbolic ring should just > be avoided. And I guess a long term goal of Sage would be to make it > disappear. > > Vincent > > 2013/12/18, maldun >: > &

Re: [sage-devel] Re: SymbolicPolynomial class

2013-12-19 Thread maldun
mial. Most of the time, the symbolic ring should just > be avoided. And I guess a long term goal of Sage would be to make it > disappear. > > Vincent > > 2013/12/18, maldun >: > > Why reinvent the wheel? A symbolic polynomal class should be capable of > a &g

Re: [sage-devel] Re: SymbolicPolynomial class

2013-12-19 Thread maldun
The fact, that SR is not a field is interesting, the Kronecker delta example on the ticket shows it quite well. But the problem originates from the fact, that the Kronecker delta is not a continuous function. The ring of continuous functions is an Integral domain. Question: Should we define a su

Re: [sage-devel] Re: SymbolicPolynomial class

2013-12-19 Thread maldun
The fact, that SR is not a field is interesting, the Kronecker delta example on the ticket shows it quite well. But the problem originates from the fact, that the Kronecker delta is not a continuous function. The ring of continuous functions is an Integral domain. Question: Should we define a su

[sage-devel] Re: SageManifolds v0.3

2013-12-18 Thread maldun
Good Job! But I have to agree with Volker, using strings is not a good idea. Why not using functions as input instead? e.g. in your example from the tutorial: X. = M.chart('x y z', 'xyz') I would use something like var('x y z') charti = x*y*z X = M.chart(vars = [x,y,z], map = charti) On Sund

[sage-devel] Re: SymbolicPolynomial class

2013-12-18 Thread maldun
rings. The other benefit is the possibility to extend the class for symbolic usage. On Wednesday, December 18, 2013 12:04:28 PM UTC+1, Simon King wrote: > > Hi again, > > On 2013-12-18, maldun > wrote: > > 1) I think that applying Polynomial division by commands like > >

[sage-devel] Re: SymbolicPolynomial class

2013-12-18 Thread maldun
And another thing: A more unified interface for polynomials. Currently we have, as you mentioned, three ways to define polynomials. It would enable us to design a class which provides a good default behavior for the average user. -- You received this message because you are subscribed to the G

[sage-devel] Re: Remaining Mercurial patches

2013-12-18 Thread maldun
On Tuesday, December 17, 2013 3:01:47 PM UTC+1, Volker Braun wrote: > > On Tuesday, December 17, 2013 12:34:31 PM UTC, maldun wrote: >> >> And I have another question: why github? >> > > We only use github to mirror our own repo to save bandwidth. All > dev

[sage-devel] Re: SymbolicPolynomial class

2013-12-18 Thread maldun
King wrote: > > Hi, > > On 2013-12-17, maldun > wrote: > > On ticket http://trac.sagemath.org/ticket/9706 for the orthogonal > > Polynomials Jeroen Demeyer came up with the the idea of a > > SymbolicPolynomial class. I think that's a great idea, because, if wel

[sage-devel] Re: Remaining Mercurial patches

2013-12-17 Thread maldun
or better for the client: hg-git (http://hg-git.github.io/) On Tuesday, December 17, 2013 1:26:23 PM UTC+1, maldun wrote: > > Why not use git-hg? https://github.com/cosmin/git-hg > > On Monday, December 16, 2013 11:51:27 AM UTC+1, Volker Braun wrote: >> >> I would recom

[sage-devel] Re: Remaining Mercurial patches

2013-12-17 Thread maldun
And I have another question: why github? afaik bitbucket would allow to use both git and mercurial. So it is possible for users to submit a mercurial patch on a git repo and vice versa. I think this would avoid a lot of compability issues. I peronally prefer git, but I guess there are a lot of p

[sage-devel] Re: Remaining Mercurial patches

2013-12-17 Thread maldun
Why not use git-hg? https://github.com/cosmin/git-hg On Monday, December 16, 2013 11:51:27 AM UTC+1, Volker Braun wrote: > > I would recommend people change their mercurial patches to git branches, > even only if to get their feet wet with git and the "sage -dev" scripts. > But I will merge merc

[sage-devel] SymbolicPolynomial class

2013-12-17 Thread maldun
Hi all! On ticket http://trac.sagemath.org/ticket/9706 for the orthogonal Polynomials Jeroen Demeyer came up with the the idea of a SymbolicPolynomial class. I think that's a great idea, because, if well designed, such a class has much potential to give very much comfort to the handling of sag

[sage-devel] New Orthogonal Polynomials - The second try

2013-11-10 Thread maldun
code, and its tiring to test and look through about 2000 lines of code. Hope this approach is ok for you, but I think it is better the get new polys every few version, instead of getting no new classes. cheers maldun -- You received this message because you are subscribed to the Google G

[sage-devel] Re: Where should Fourier sum stop?

2011-06-21 Thread maldun
It is not only more pythonic if you cut the series at N-1 it is also natural if you are used to work with spectral methods and ffts, because a trig. poly. with deg N-1 has N coefficients, since the constant term has degree 0. greez Maldun On Jun 18, 2:25 am, Andrey Novoseltsev wrote: > He

[sage-devel] Re: toying with various upgrades (numpy,ecl,maxima,gfan,mpfi)

2011-01-27 Thread maldun
If you want I could make the numpy update again. Since most necessary patches of the Bugs we found in #9808 should be merged in 1.5.1 this should be rather easy. regards, Stefan On Jan 27, 2:45 pm, kcrisman wrote: > On Jan 27, 5:30 am, François Bissey > wrote: > > > Hi all, > > > so it's that t

[sage-devel] Re: Anybody using weave?

2011-01-25 Thread maldun
Would be good to know! I updated the corresponding documentation in numerical sage: http://trac.sagemath.org/sage_trac/ticket/10689 these examples should work now. You could simply test waeve with the repaired examples ^^ (sorry for possible double posting ^^") greez, maldun On Jan 25,

[sage-devel] Re: weave doesn't work

2011-01-25 Thread maldun
Update: I allowed myself to update the docu: http://trac.sagemath.org/sage_trac/ticket/10689 would need review. greez maldun On Jan 25, 3:16 pm, maldun wrote: > As mentioned in the other post, it's included in scipy and can be > imported via > > from scipy import weave &g

[sage-devel] Re: weave doesn't work

2011-01-25 Thread maldun
As mentioned in the other post, it's included in scipy and can be imported via from scipy import weave so I think this package is simply outdated. greez, maldun On Jan 22, 3:48 pm, Jeroen Demeyer wrote: > There is some documentation about using Weave, but it doesn't work. &g

[sage-devel] Re: Anybody using weave?

2011-01-25 Thread maldun
5, 2:46 pm, maldun wrote: > Question: Isn't a version of weave included in scipy, or would > deleting the weave in Sage, > also cripple the weave in Scipy? (I personally don't think so) > > I only import weave from scipy via from scipy import weave > so if removing weave doe

[sage-devel] Re: Anybody using weave?

2011-01-25 Thread maldun
Question: Isn't a version of weave included in scipy, or would deleting the weave in Sage, also cripple the weave in Scipy? (I personally don't think so) I only import weave from scipy via from scipy import weave so if removing weave doesn't do any harm to the weave in scipy, I have no problems wi

[sage-devel] Re: not specifying vars for derivative of single-var functions?

2011-01-25 Thread maldun
Also +1 for keeping. Many people which are more familiar with Matlab expect this behavior in Sage too. (I recently introduced Sage to some people) Of course it's safer to specify the variable, but if I need to I can do it. I think this should always be a users choice and never the choice of the de

[sage-devel] Re: Advice for "Lazy" Symbolic Evaluation

2011-01-18 Thread maldun
oned above: to understand BuiltinFunction, you should understand how the base class is working (at least the basics). regards, maldun On 18 Jan., 22:24, Chris Swierczewski wrote: > > Coercion is currently still a little problem, and I think you would > > earn some credits here if a

[sage-devel] Re: Advice for "Lazy" Symbolic Evaluation

2011-01-18 Thread maldun
n the code I posted on trac if it helps you: http://trac.sagemath.org/sage_trac/ticket/9706 If you need a quick solution, simply writing a small python class would do the trick. (similar as in the current ortho_polys version) regards, maldun On 18 Jan., 17:13, Chris Swierczewski wrote: > &

[sage-devel] Re: Advice for "Lazy" Symbolic Evaluation

2011-01-18 Thread maldun
gards, maldun On Jan 18, 1:14 pm, maldun wrote: > Of course theta can't handle lists. > Try map instead: map(theta,[x,x^2,x^3]), because map applies the > function > to every list element. > > Hope this helps =) > maldun > > On Jan 14, 12:22 pm, Chris Swierczewski

[sage-devel] Re: Advice for "Lazy" Symbolic Evaluation

2011-01-18 Thread maldun
Of course theta can't handle lists. Try map instead: map(theta,[x,x^2,x^3]), because map applies the function to every list element. Hope this helps =) maldun On Jan 14, 12:22 pm, Chris Swierczewski wrote: > Does anyone know of an example where a class __call__ method takes lists as

[sage-devel] Re: Error when installing wxPython

2011-01-17 Thread maldun
I had the same errors, simply update the source The version is 2.8.7 current is 2.8.11 You find a new spkg on http://computational-sage.googlecode.com/files/wxPython-2.8.11.0.spkg On 17 Jan., 20:11, Sancho wrote: > I'll try to apply this fix:http://trac.wxwidgets.org/ticket/10883 > > On Jan

[sage-devel] Tickets #8537, #8538 and #10566 for outdated spkgs openmpi, mpi4py and it's docu would need some review

2011-01-10 Thread maldun
- install, but I'm quite sure there is a better way. has somenone an Idea? greez maldun -- 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

[sage-devel] Updated MPI

2011-01-06 Thread maldun
quite sure there is a better way. has somenone an Idea? greez maldun -- 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] Easymacs

2010-12-20 Thread maldun
for beginners too, who search a good alternative to the notebook. (or generally for students who begin programming, but find the emacs confusing) greez maldun -- 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

[sage-devel] Re: bug wranglers

2010-10-16 Thread maldun
Hi, Burcin! I think this is a great Idea! I'm short on time in the next months, but If I'm free again, could help with this. greez, Stefan On 16 Okt., 14:21, Burcin Erocal wrote: > Hi, > > Motivated by the call for the bug days, here is an idea to manage the > rapidly increasing number of "new"

[sage-devel] The new ortho polys would need review/feedback (Ticket #9706)

2010-10-16 Thread maldun
Hi! Burcin asked me to make a new version of ortho polys some time ago, and since Ticket #9808 for upgrading numpy and scipy finally got a positive review, I can now finish this task. Please feel free to look at the new version. The new version is a lot faster as the old implementation with maxim

[sage-devel] Re: Strange doctest behavior after adding new ortho polys as Builtin functions

2010-10-15 Thread maldun
Ok I found a workarround: I enlarged the ranges in the for loop for the search of the functions. The change apparently made the search range for the function foo wider. All doctests pass now Open question why does this work if I type it in by hand... On 14 Okt., 21:57, maldun wrote: > Hi

[sage-devel] Strange doctest behavior after adding new ortho polys as Builtin functions

2010-10-14 Thread maldun
quot;devel/sage/sage/symbolic/pynac.pyx" I worked the first one out. This is clear, that when you add new symbolic objects the random expressions change. But the second is giving me headaches for some time now... I give an example because I think the others have the same problem: File "/hom

[sage-devel] Re: Complex numerical integration

2010-10-14 Thread maldun
her things, like a new version of orthogonal polynomials before. Another goal would be doing something similar to Mathematica's NIntegrate, but his would take some years and should only considered as long time goal for sage. -maldun On Oct 14, 6:01 am, Oscar Gerardo Lazo Arjona wrote: > Hell

[sage-devel] Re: Bug with Latex in sage

2010-10-14 Thread maldun
Thanks for the hints but actually I'm doing this anyway since my sage holds a lot of experimental stuff which I use for my work. So I have always an clean intallation of Sage ready if something goes wrong =) But using git is a nice Idea to manage this, I had thought about that earlier. -m

[sage-devel] Re: Presentation for Matlab-o-phil people

2010-10-14 Thread maldun
on is Sage is based on Python, and has therefore the benefit, that it is based on a real programming language, which knows more than one data type. Just my 2 cents. -maldun -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to

[sage-devel] Re: Presentation for Matlab-o-phil people

2010-10-14 Thread maldun
mputations with Cython: http://conference.scipy.org/proceedings/SciPy2009/paper_2/full_text.pdf Hope that helps a little bit. -maldun On Oct 14, 10:17 am, Alexander Dreyer wrote: > Hi, > are there  Sage Worksheets around for explaining the advantages of > Sage to people, which usually u

[sage-devel] Re: Bug with Latex in sage

2010-10-12 Thread maldun
Thanks for the quick response! I will update my sage on this computer then =) On Oct 12, 5:20 pm, Burcin Erocal wrote: > On Tue, 12 Oct 2010 08:05:40 -0700 (PDT) > > maldun wrote: > > Hi all! > > > I had the following problem with the latex() function in sage: > &

[sage-devel] Bug with Latex in sage

2010-10-12 Thread maldun
\sqrt{x} instead before the \frac{...} where it belongs. Perhaps the parser has the wrong priorities --maldun -- 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

[sage-devel] Re: sage crashes on calculating roots of a polynom

2010-10-10 Thread maldun
You're right... I really should go to bed now =) Well then it works also for ubuntu ^^ -maldun On 10 Okt., 23:07, Mike Hansen wrote: > On Sun, Oct 10, 2010 at 2:05 PM, maldun wrote: > > Thanks to your patch the segfault is now gone, but apperently a new > > problem arises:

[sage-devel] Re: sage crashes on calculating roots of a polynom

2010-10-10 Thread maldun
On 10 Okt., 20:47, Mike Hansen wrote: > On Sun, Oct 10, 2010 at 11:15 AM, maldun wrote: > > sage: sage: a = var('a') > > sage: sage: R.  = a.parent()[] > > sage: sage: (x - a).change_ring(RR) # boom! > > I've posted a patch athttp://trac.sagemath.org

[sage-devel] Re: sage crashes on calculating roots of a polynom

2010-10-10 Thread maldun
invalid memory) or is not properly wrapped with _sig_on, _sig_off. You might want to run Sage under gdb with 'sage -gdb' to debug this. Sage will now terminate (sorry). More interesting is this from sage -gdb /home/maldun/

[sage-devel] Re: sage crashes on calculating roots of a polynom

2010-10-10 Thread maldun
invalid memory) or is not properly wrapped with _sig_on, _sig_off. You might want to run Sage under gdb with 'sage -gdb' to debug this. Sage will now terminate (sorry). More interesting is this from sage -gdb /home/maldun/

[sage-devel] Re: sage crashes on calculating roots of a polynom

2010-10-10 Thread maldun
invalid memory) or is not properly wrapped with _sig_on, _sig_off. You might want to run Sage under gdb with 'sage -gdb' to debug this. Sage will now terminate (sorry). More interesting is this from sage -gdb /home/maldun/

[sage-devel] Re: sage crashes on calculating roots of a polynom

2010-10-10 Thread maldun
Ok then they didn't upgrade the valgrind package in the meantime. I'm using Ubuntu myself and had the same problem, but I build my own package with the latest source from svn. It worked for me I can send it to you if you want, and you test it out. maldun On 7 Okt., 20:07, Johannes w

[sage-devel] Re: sage crashes on calculating roots of a polynom

2010-10-07 Thread maldun
I would suggest to run sage with valgrind to get more information out of your error messages. On 7 Okt., 17:31, Johannes wrote: > Hi list, > i got my sage crashed once again: > > sage: a,b,c= var('a,b,c') > sage: mprime = matrix([[01,b+1,2],[a+1,2,1],[2,1,c+1]]) > sage: cp = mprime.charpoly() > s

[sage-devel] Re: German translation of the tutorial / Übersetzung des Tutorials in Deutsch

2010-10-05 Thread maldun
When I find some time this weekend, I can do some proofreading. Hope you get along with austrian german as well ;-) greez, maldun On Oct 5, 12:10 am, Philipp Schneider wrote: >  Dear Sage community, > > Michael Mardaus and I are happy to announce that we have finished > tra

[sage-devel] Re: German translation of the tutorial / Übersetzung des Tutorials in Deutsch

2010-10-05 Thread maldun
When I find some time this weekend I will make a little bit proofreading. greez, maldun On Oct 5, 12:10 am, Philipp Schneider wrote: >  Dear Sage community, > > Michael Mardaus and I are happy to announce that we have finished > translating the complete Sage tutorial to German. >

[sage-devel] Re: Ticket #9808 for newer numpy and scipy packages would need a final decision

2010-10-02 Thread maldun
On 30 Sep., 14:58, Jason Grout wrote: > On 9/30/10 6:25 AM, maldun wrote: > > > There is another thing that I want to mention another thing: > > > Leif mentioned that it would be important that after installing of > > numpy rebuilding of sage should happen with -b,

[sage-devel] Re: Ticket #9808 for newer numpy and scipy packages would need a final decision

2010-09-30 Thread maldun
There is another thing that I want to mention another thing: Leif mentioned that it would be important that after installing of numpy rebuilding of sage should happen with -b, and not with -ba like I suggested. I can understand his thoughts because actually it is a good thing when sage builds the

[sage-devel] Re: Ticket #9808 for newer numpy and scipy packages would need a final decision

2010-09-30 Thread maldun
Could you alse give the 1.4.1.p0 a spin? it contains the patch for linux ppc. (download link a few posts above) Perhaps the whole thing will get obsolete with 1.5.0 but I'm curious if that would work also, because I'm not sure if I get 1.5.0 ready in time. greez maldun On Sep 30

[sage-devel] Re: Ticket #9808 for newer numpy and scipy packages would need a final decision

2010-09-29 Thread maldun
> > Maldun, do you think that would be possible?  I'd be willing to retest > it on the OS X PPC box to make sure that didn't break anything - no, > Dima, I still don't have the Linux up on that yet :( > > - kcrisman I packed it: http://code.google.com/p/spkg-u

[sage-devel] Re: Ticket #9808 for newer numpy and scipy packages would need a final decision

2010-09-29 Thread maldun
Yeah that's true, and I wouldn't make the final decision on that, but it would be great if it could be tested anyway, I think this may make porting to 1.5.1 easier when it finally will be released, On 29 Sep., 18:49, kcrisman wrote: > On Sep 29, 11:46 am, maldun wrote: > >

[sage-devel] Re: Ticket #9808 for newer numpy and scipy packages would need a final decision

2010-09-29 Thread maldun
> > Maldun, do you think that would be possible?  I'd be willing to retest > it on the OS X PPC box to make sure that didn't break anything - no, > Dima, I still don't have the Linux up on that yet :( > > - kcrisman Sure why not! I give it a shot and post a p

[sage-devel] Re: Ticket #9808 for newer numpy and scipy packages would need a final decision

2010-09-29 Thread maldun
On Sep 29, 3:55 pm, Volker Braun wrote: > I thought this is fixed due to Debian people pestering numpy dev's :-) > But I'm not sure if the patch is already included in the newest > release. > > http://mail.scipy.org/pipermail/numpy-svn/2010-July/004318.html > > Volker As far as I know this will

[sage-devel] Re: Sage: Very suitable for rapid prototyping

2010-09-28 Thread maldun
This is the reason why I think Sage and Python in general are so useful. I'm doing a lot of experimental code recently, and it is very easy to get them up and running in Python/Sage programs. And since the whole system is so flexible in communicating with other languages, sorting out the critical

[sage-devel] Re: Sage: Very suitable for rapid prototyping

2010-09-28 Thread maldun
This is the reason why I think Sage and Python in general are so useful. I'm doing a lot of experimental code recently, and it is very easy to get them up and running in Python/Sage programs. And since the whole system is so flexible in communicating with other languages, sorting out the critical

[sage-devel] Re: Latest numpy+scipy packages

2010-09-28 Thread maldun
Ok latest update: numpy-1.4.1 and scipy-0.8 should now be ready! (see ticket #9808; http://trac.sagemath.org/sage_trac/ticket/9808 ) Many many thanks to fbissey for the help with the spkg-install script, and kcrisman for additional testing! I have now a question: Should we merge it into sage-4.6.

[sage-devel] Re: changing SAGE_LOCAL/SAGE_ROOT to SPKG_LOCAL/SPKG_ROOT

2010-09-28 Thread maldun
This is just my opinion, but isn't the name SPKG (SAGE package) already quite specialised? On Sep 27, 11:13 pm, Ondrej Certik wrote: > Hi, > > in Femhub (http://femhub.org) I wrote a new buildsystem from scratch > using Python, so far it's a simple Python script: > > http://github.com/hpfem/femhu

[sage-devel] Re: Improvement of numerical integration routines

2010-09-28 Thread maldun
Ok first I would thank everyone for their thoughts. I think the best is to do a design document, or at least start a ticket where we come to a common agreement how to handle the input because there are several possiblities to do that. And it is important that we are more or less happy about the sol

[sage-devel] The PyCUDA package for sage

2010-09-24 Thread maldun
PyOpenCL would also be available: http://trac.sagemath.org/sage_trac/ticket/10009 Everything works for me, I hope it's useful for others too! greez, maldun -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+uns

[sage-devel] Re: pyope...@sage

2010-09-24 Thread maldun
Since nobody answered I figured it out myself how it works. Opened a ticket on this. see http://trac.sagemath.org/sage_trac/ticket/10009 . This would need testing, it is only tested on ubuntu 10.04 with latest NVIDIA developer drivers, and CUDA toolkit. I use a geforce 9500 GT. greez, maldun

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