Re: Issue 3781 in sympy: String printer for factorial/subfactorial shouldn't be a pretty-printer!

2013-04-27 Thread sympy
Comment #3 on issue 3781 by skirpic...@gmail.com: String printer for factorial/subfactorial shouldn't be a pretty-printer! http://code.google.com/p/sympy/issues/detail?id=3781 I don't think I have found something related... May be that: http://code.google.com/p/sympy/issues/detail?id=141

Re: Issue 3781 in sympy: String printer for factorial/subfactorial shouldn't be a pretty-printer!

2013-04-27 Thread sympy
Comment #5 on issue 3781 by asmeu...@gmail.com: String printer for factorial/subfactorial shouldn't be a pretty-printer! http://code.google.com/p/sympy/issues/detail?id=3781 It was issue 2889. -- You received this message because this project is configured to send all issue notifications

Issue 3783 in sympy: Prufer.edges test depends on order of set

2013-04-27 Thread sympy
Status: New Owner: Labels: Type-Defect Priority-Medium New issue 3783 by hacm...@gmail.com: Prufer.edges test depends on order of set http://code.google.com/p/sympy/issues/detail?id=3783 the method Prufer.edges iterates through a set (sympy/combinatorics/prufer.py line 271), appending

Re: Issue 3783 in sympy: Prufer.edges test depends on order of set

2013-04-27 Thread sympy
Updates: Status: Valid Comment #1 on issue 3783 by asmeu...@gmail.com: Prufer.edges test depends on order of set http://code.google.com/p/sympy/issues/detail?id=3783 It's curious that this doesn't fail with hash randomization. I guess none of the elements are hashed against a

Re: Issue 3783 in sympy: Prufer.edges test depends on order of set

2013-04-27 Thread sympy
Updates: Labels: Combinatorics Milestone-Release0.7.3 Comment #2 on issue 3783 by asmeu...@gmail.com: Prufer.edges test depends on order of set http://code.google.com/p/sympy/issues/detail?id=3783 (No comment was entered for this change.) -- You received this message because this

Re: Issue 3172 in sympy: KroneckerDelta contains secondquant-specific stuff

2013-04-27 Thread sympy
Comment #5 on issue 3172 by asmeu...@gmail.com: KroneckerDelta contains secondquant-specific stuff http://code.google.com/p/sympy/issues/detail?id=3172 I think so. -- You received this message because this project is configured to send all issue notifications to this address. You may

Re: Issue 3723 in sympy: Multivariate Order()

2013-04-27 Thread sympy
Updates: Status: Valid Labels: Series Comment #1 on issue 3723 by asmeu...@gmail.com: Multivariate Order() http://code.google.com/p/sympy/issues/detail?id=3723 ISsue 1756 is somewhat related to this. -- You received this message because this project is configured to send all

Re: Issue 3475 in sympy: simplify the square of an addition

2013-04-27 Thread sympy
Updates: Status: Fixed Comment #6 on issue 3475 by smi...@gmail.com: simplify the square of an addition http://code.google.com/p/sympy/issues/detail?id=3475 (No comment was entered for this change.) -- You received this message because this project is configured to send all issue

Re: Issue 2699 in sympy: apart() should be more careful about distributing over an Add

2013-04-27 Thread sympy
Updates: Status: Fixed Comment #5 on issue 2699 by smi...@gmail.com: apart() should be more careful about distributing over an Add http://code.google.com/p/sympy/issues/detail?id=2699 (No comment was entered for this change.) -- You received this message because this project is

Re: Issue 642 in sympy: make all simplify functions nc-aware

2013-04-27 Thread sympy
Comment #19 on issue 642 by smi...@gmail.com: make all simplify functions nc-aware http://code.google.com/p/sympy/issues/detail?id=642 rcollect remains to become nc-aware -- You received this message because this project is configured to send all issue notifications to this address. You

Re: Issue 2014 in sympy: use ordered_iter or iterable instead of checking for literal container

2013-04-27 Thread sympy
Updates: Summary: use ordered_iter or iterable instead of checking for literal container Labels: -Solvers -NeedsReview -torstenmarcoknodt EasyToFix Comment #16 on issue 2014 by smi...@gmail.com: use ordered_iter or iterable instead of checking for literal container

[sympy] GSOC Application

2013-04-27 Thread Saurabh Jha
Hi I have uploaded my proposal at wiki as well as google melange. https://github.com/sympy/sympy/wiki/GSOC-2013-Application-Saurabh-Jha:-Linear-Algebra-Module https://google-melange.appspot.com/gsoc/proposal/review/google/gsoc2013/saurabh_jha/11001 I think the application is still pretty vague.

Re: [sympy] Re: GSoC 2013 Application - Improved ODE Solver.

2013-04-27 Thread Manoj Kumar
I've updated my proposal on melange. http://www.google-melange.com/gsoc/proposal/review/google/gsoc2013/manojkumar/1 On Tue, Apr 2, 2013 at 8:32 PM, Manoj Kumar manojkumarsivaraj...@gmail.comwrote: I've made a few changes in my proposal, focussing a bit more on the implementation part, and

[sympy] Conditional substitution and on the fly dictionary creation

2013-04-27 Thread Alan Bromborsky
consider the sympy expressions - a = a_1*e_1+...+a_n*e_n b = b_1*e_1+...+b_n*e_n where the a_i's and the b_i's are commutative sympy expressions and the e_i's are non-commutative symbols and you have a dictionary mul_dict = {e_i*e_j: f(e_i,e_j)} if mul_dict is fully populated then a*b =

Re: [sympy] Conditional substitution and on the fly dictionary creation

2013-04-27 Thread Alan Bromborsky
On 04/27/2013 12:40 PM, Alan Bromborsky wrote: consider the sympy expressions - a = a_1*e_1+...+a_n*e_n b = b_1*e_1+...+b_n*e_n where the a_i's and the b_i's are commutative sympy expressions and the e_i's are non-commutative symbols and you have a dictionary mul_dict = {e_i*e_j: f(e_i,e_j)}

Re: [sympy] Conditional substitution and on the fly dictionary creation

2013-04-27 Thread Aaron Meurer
It should work with a custom dictionary. At the very least, it will work with any iterator or (old, new) pairs. You could also make f symbolic and unevaluated by default, then call doit after the substitution. It won't be 100% efficient if the same f will appear more than once, though. Aaron

Re: [sympy] Vector Calculus module

2013-04-27 Thread Aaron Meurer
Since you are taking about inner products, you might look at generalizing some of the code in the quantum module so that it just uses the vector module. Some notes: - the quantum module uses infinite dimensional vector spaces, so it will need to work more symbolically than just rewriting

Re: [sympy] Vector Calculus module

2013-04-27 Thread Prasoon Shukla
Since you are taking about inner products, you might look at generalizing some of the code in the quantum module so that it just uses the vector module. Hmm .. I think it can be done but thinking it through and going through the code in quantum module will take some time. My final exams

Re: [sympy] Vector Calculus module

2013-04-27 Thread Aaron Meurer
On Saturday, April 27, 2013, Prasoon Shukla wrote: Since you are taking about inner products, you might look at generalizing some of the code in the quantum module so that it just uses the vector module. Hmm .. I think it can be done but thinking it through and going through the code

[sympy] Google+ Hangouts

2013-04-27 Thread Aaron Meurer
I see that IPython has started doing public Google+ hangouts for some of their core discussions. See for example https://plus.google.com/105051551851350439748/posts/411V5Gyps1f. I think this is really cool. The hangout is basically a really intelligent multi-way video chat that requires no setup.

Re: [sympy] Google+ Hangouts

2013-04-27 Thread Christian Muise
A great idea -- plus you can share your screen in a hangout (something I take advantage of quite frequently), which would be useful for demoing something or showing spots of the code. On Sat, Apr 27, 2013 at 6:20 PM, Aaron Meurer asmeu...@gmail.com wrote: I see that IPython has started doing

Re: [sympy] GSoC 2013: Error-correcting codes

2013-04-27 Thread Shravas Rao
Will matrices support domains by the time the summer starts? Or should I also plan on working on that as a part of my project? Thanks, - Shravas Rao On Tuesday, April 23, 2013 6:19:15 PM UTC-4, Aaron Meurer wrote: Only cyclic finite fields are implemented. F_q for q = p^n for n 1 is not