Re: [sage-devel] VOTE: move Sage development to Github

+1 for GitHub. > On 21.09.2022, at 19:23, David Roe wrote: > > Dear Sage developers, > Following extensive discussion, both recently > > (prompted by issues upgrading the trac server) and over >

[sage-devel] Symbolic equations and factor

I found some old code that seems to have broken due to a change of behavior when calling `factor()` on symbolic equations. In the old version (can't really tie it to a specific SageMath version; maybe 2 years old or so), it would simply factor both sides of an equation, i.e., something along th

[sage-devel] Re: Evaluation of beta() in Sage 7.2

r fix this any further. ;-) Benjamin Am Dienstag, 14. Juni 2016 10:28:04 UTC+2 schrieb Ralf Stephan: > > On Tuesday, June 14, 2016 at 10:18:01 AM UTC+2, Benjamin Hackl wrote: >> >> This seems to come from this (7.2.beta6): >> >> sage: (-0.9).log_gamma() >&g

[sage-devel] Re: Evaluation of beta() in Sage 7.2

This seems to come from this (7.2.beta6): sage: (-0.9).log_gamma() NaN sage: (-1.9).log_gamma() 1.71621928121964 sage: (-2.9).log_gamma() NaN sage: (-3.9).log_gamma() -0.709468008908392 sage: (-4.9).log_gamma() NaN sage: (-5.9).log_gamma() -4.07365556493664 sage: (-6.9).log_gamma() NaN sage: (-7.9

Re: [sage-devel] Re: no trac mail notifications?

20 um 19:08 schrieb Benjamin Hackl: > > ... might be just here at AAU. I found my notifications in the spam > folder. > > I do not use the @aau.at address. > > Could there have been changes in trac's mails so that some servers do > not accept the mails (or declare th

[sage-devel] Re: no trac mail notifications?

... might be just here at AAU. I found my notifications in the spam folder. Benjamin Am Montag, 20. Juli 2015 18:00:29 UTC+2 schrieb Daniel Krenn: > > I do not get any trac mail notifications (about changes, etc.). Have > there been any changes to trac lately? > > Best > > Daniel > -- You

[sage-devel] Re: residue produces incorrect results

Hi Ralf! Well, no; I wasn't aware of the overview -- thanks for showing me. In principle, the wrong behavior of residue can be contributed to http://trac.sagemath.org/ticket/9555 -- except for the case where the singularity is not recognized, I guess. But that can be fixed in the ticket I open

[sage-devel] Re: Expression.series() = PowerSeriesRing(SR)?

I'm strongly in favor of returning an element of PowerSeriesRing -- within the current implementation, this happens: sage: (1/(1+x)).series(x, 2) + (1/(1-x)).series(x, 2) (1 + (-1)*x + Order(x^2)) + (1 + 1*x + Order(x^2)) sage: (1/(1-x)).series(x, 2) * (1/(1+x)).series(x) (1 + (-1)*x + Order(x^2

[sage-devel] residue produces incorrect results

Hi, currently, there are some rather unwanted features with respect to the residue-function. For example: sage: f(x) = 1/(x^2 - x - 1) sage: f(1/2*sqrt(5) + 1/2) 4/((sqrt(5) + 1)^2 - 2*sqrt(5) - 6) Now, as the pole obviously is not recognized because the radical expression is not simplified/e

[sage-devel] Re: GSoC 2015: 5 projects funded

ivariate) Asymptotic Expressions > Benjamin Hackl and Daniel Krenn > > http://www.google-melange.com/gsoc/project/details/google/gsoc2015/behackl/5649050225344512 > > > Performance Improvements for the Graph Module of Sagemath > Michele Bborassi and David Coudert >

Re: [sage-devel] Re: doctest failure in dyck_word.py

I had a discussion regarding the use of python integers some time ago with Daniel Krenn. Basically, range and xrange produce Python integers, whereas srange and sxrange (from sage.misc.misc) produce Integers. Also, when dealing with lists, len usually produces Python int's. (Maybe Daniel has s

Re: [sage-devel] Re: doctest failure in dyck_word.py

py passes without error. This is really strange. Benjamin Am Samstag, 18. April 2015 00:13:59 UTC+2 schrieb vdelecroix: > > At least I opened #18244... > > On 18/04/15 00:02, Benjamin Hackl wrote: > > Vincent, did you also upgrade to 6.7.beta0 or 6.7.beta1 from a previous > >

Re: [sage-devel] Re: doctest failure in dyck_word.py

possibilty that the error is random. I will continue to investigate this by running ptestlong a few more times; if I find something out of the ordinary I'll report back here. Benjamin Am Freitag, 17. April 2015 21:38:18 UTC+2 schrieb Benjamin Hackl: > > Strange. I'm also trying

Re: [sage-devel] Re: doctest failure in dyck_word.py

to get something more verbose. And there is no caching > involved as far as I can tell... > > Vincent > > On 17/04/15 19:48, Benjamin Hackl wrote: > > Hi Vincent, > > > > well, at least I'm not the only one. For now, I don't really have a clue &g

[sage-devel] Re: doctest failure in dyck_word.py

Hi Vincent, well, at least I'm not the only one. For now, I don't really have a clue regarding where this could come from. I'm still compiling a clean version of 6.7.beta1, but now I guess that won't change much. The circumstance that this error only seems to appear after a series of doctests

Re: [sage-devel] #15846 + testing local changes to upstream-packages?

n Am Dienstag, 7. April 2015 18:26:09 UTC+2 schrieb vdelecroix: > > Hello, > > On 07/04/2015, Benjamin Hackl > wrote: > > Hello everybody, > > > > today I had a look at http://trac.sagemath.org/ticket/15846 and I think > I > > may have tracked down the

[sage-devel] #15846 + testing local changes to upstream-packages?

Hello everybody, today I had a look at http://trac.sagemath.org/ticket/15846 and I think I may have tracked down the issue to SymPy (details in the comments of the ticket). Assuming what I found actually is the problem, I'm not quite sure how to proceed from there (i.e. reporting the issue upst

[sage-devel] Asymptotic Expressions in Sage

Hello everyone! I just wanted to let you know -- as suggested in https://groups.google.com/forum/#!topic/sage-devel/uR_bv7PrZpk -- that Clemens Heuberger, Daniel Krenn, and myself are currently working on improving the situation of asymptotic expressions in Sage. In order to do so, we have cre

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

Am Freitag, 5. Dezember 2014 16:31:33 UTC+1 schrieb Martin R: > 3) asymptotics. > > Hello everyone! I just wanted to let everyone know that Clemens Heuberger, Daniel Krenn, and myself are currently working on improving the situation of asymptotic expressions in Sage. Ticket #17601 (http://trac.