[sympy] Re: Mul._eval_subs broken in a number of ways

2012-05-13 Thread Andreas Klöckner
On Saturday, May 12, 2012 11:34:34 PM UTC-4, Andreas Klöckner wrote: > > Any help would be much appreciated. > For reference, there seem to be a few more bugs affecting CSE in the presence of complex numbers. I'll post more when I've got them tracked down. Andreas --

[sympy] Mul._eval_subs broken in a number of ways

2012-05-12 Thread Andreas Klöckner
Hi all, (Before I start--one question: Google Code bug tracker or Github bug tracker--which is the right one?) I'm writing because I could use some expert help sorting through my findings in this bug: https://code.google.com/p/sympy/issues/detail?id=3262 I think I've diagnosed most of the thi

Re: [sympy] Diff in maxima and sympy

2012-04-14 Thread Andreas Klöckner
On Saturday, April 14, 2012 3:34:12 AM UTC-4, smichr wrote: > > On Sat, Apr 14, 2012 at 12:37 PM, Chris Smith wrote: > > On Sat, Apr 14, 2012 at 11:25 AM, Aaron Meurer > wrote: > >> You can get a more simple result in SymPy by factoring between each > >> derivative, > > Since multiple derivati

[sympy] Maxima's ratsubst

2009-09-07 Thread Andreas Klöckner
Hi there, I'm happy to see that Sympy has come a long way since the last time I looked, and I'd love to ditch Maxima in its favor. In trying to do so, I was looking for a replacement for Maxima's tremendously useful "ratsubst" function [1], but I couldn't find any sign of something like it in the