Issue 2407 in sympy: Rsolve introduces unknown symbols

Status: Accepted Owner: skr...@gmail.com Labels: Type-Defect Priority-Medium New issue 2407 by skr...@gmail.com: Rsolve introduces unknown symbols http://code.google.com/p/sympy/issues/detail?id=2407 These commands were executed: from __future__ import division from sympy import * x, y, z, t =

Re: Issue 2407 in sympy: Rsolve introduces unknown symbols

Comment #1 on issue 2407 by skr...@gmail.com: Rsolve introduces unknown symbols http://code.google.com/p/sympy/issues/detail?id=2407 Discard this issue, I made a mistake. -- You received this message because you are subscribed to the Google Groups sympy-issues group. To post to this group,

Issue 2408 in sympy: Error in rsolve

Status: Accepted Owner: skr...@gmail.com Labels: Type-Defect Priority-Medium New issue 2408 by skr...@gmail.com: Error in rsolve http://code.google.com/p/sympy/issues/detail?id=2408 These commands were executed: from __future__ import division from sympy import * x, y, z, t = symbols('x y z

Re: Issue 2408 in sympy: Error in rsolve

Comment #1 on issue 2408 by skr...@gmail.com: Error in rsolve http://code.google.com/p/sympy/issues/detail?id=2408 Sorry, the last 2 lines should read: The expected answer is f(0)*2**(n-1)*n f(n) = (2*n/(n-1))*f(n-1) =

Re: Issue 1491 in sympy: Use nice ordering in printing

Comment #26 on issue 1491 by matt...@gmail.com: Use nice ordering in printing http://code.google.com/p/sympy/issues/detail?id=1491 I fixed bugs related to non-commutative symbols in ordering functions and improved ordering of certain classes of expressions when fixing doctests. Fixed all

Re: Issue 1491 in sympy: Use nice ordering in printing

Updates: Labels: -Priority-High Priority-Critical NeedsReview Comment #27 on issue 1491 by matt...@gmail.com: Use nice ordering in printing http://code.google.com/p/sympy/issues/detail?id=1491 Pull request is here: https://github.com/sympy/sympy/pull/344 -- You received this message

Re: Issue 1271 in sympy: Implement rsolve

Updates: Status: Fixed Comment #6 on issue 1271 by smi...@gmail.com: Implement rsolve http://code.google.com/p/sympy/issues/detail?id=1271 This no longer appears in the codebase. -- You received this message because you are subscribed to the Google Groups sympy-issues group. To post

Re: Issue 2180 in sympy: examples/advanced/relativity.py stopped working (issue identified at comment 11)

Updates: Summary: examples/advanced/relativity.py stopped working (issue identified at comment 11) Comment #13 on issue 2180 by smi...@gmail.com: examples/advanced/relativity.py stopped working (issue identified at comment 11) http://code.google.com/p/sympy/issues/detail?id=2180 (No

Issue 2409 in sympy: variable undefined

Status: Accepted Owner: smi...@gmail.com Labels: Type-Defect Priority-Medium New issue 2409 by smi...@gmail.com: variable undefined http://code.google.com/p/sympy/issues/detail?id=2409 The following error popped up while testing: File C:\Documents and

Re: Issue 2406 in sympy: improve Tuple constructor

Updates: Status: NeedsDecision Labels: Milestone-Release0.7.0 Comment #1 on issue 2406 by ronan.l...@gmail.com: improve Tuple constructor http://code.google.com/p/sympy/issues/detail?id=2406 We should try to resolve this before the release, because it would be too much of a

Re: Issue 2406 in sympy: improve Tuple constructor

Comment #2 on issue 2406 by renato.c...@gmail.com: improve Tuple constructor http://code.google.com/p/sympy/issues/detail?id=2406 I see. In fact, there's no way this would work like builtin tuple because tuple() only accepts a single argument. I'm +1 on your suggestion. -- You received this

Re: Issue 1827 in sympy: log eval gives more standard form

Comment #23 on issue 1827 by asmeurer: log eval gives more standard form http://code.google.com/p/sympy/issues/detail?id=1827 Now you've got me wondering just how lucky it was. Given a number n, what's the probability that the second largest factor is greater than or equal to k (if I

Re: Issue 2407 in sympy: Rsolve introduces unknown symbols

Updates: Status: Invalid Comment #2 on issue 2407 by asmeurer: Rsolve introduces unknown symbols http://code.google.com/p/sympy/issues/detail?id=2407 (No comment was entered for this change.) -- You received this message because you are subscribed to the Google Groups sympy-issues

Re: Issue 2408 in sympy: Error in rsolve

Updates: Labels: Solvers Polynomial Comment #2 on issue 2408 by asmeurer: Error in rsolve http://code.google.com/p/sympy/issues/detail?id=2408 (No comment was entered for this change.) -- You received this message because you are subscribed to the Google Groups sympy-issues group. To

Re: Issue 2409 in sympy: variable undefined

Comment #1 on issue 2409 by asmeurer: variable undefined http://code.google.com/p/sympy/issues/detail?id=2409 How do you reproduce this? -- You received this message because you are subscribed to the Google Groups sympy-issues group. To post to this group, send email to

Re: Issue 2406 in sympy: improve Tuple constructor

Comment #3 on issue 2406 by renato.c...@gmail.com: improve Tuple constructor http://code.google.com/p/sympy/issues/detail?id=2406 I implemented the sympification of the args in https://github.com/renatocoutinho/sympy/commit/a7db82ff88baab2b21768d5cfa652eb69b998702 I had to do it in

Re: Issue 2409 in sympy: variable undefined

Updates: Status: Started Owner: matt...@gmail.com Labels: Milestone-Release0.7.0 Comment #2 on issue 2409 by matt...@gmail.com: variable undefined http://code.google.com/p/sympy/issues/detail?id=2409 In [3]: groebner([x**2 + 2.0*y], x, y)

Re: Issue 2406 in sympy: improve Tuple constructor

Updates: Status: Accepted Comment #4 on issue 2406 by asmeurer: improve Tuple constructor http://code.google.com/p/sympy/issues/detail?id=2406 Not only that, but there would be an inconsistency for nested Tuples: Tuple((1, 2, 3)) (i.e., Tuple(tuple([1, 2, 3]))) Tuple(1, 2, 3)

Re: Issue 2406 in sympy: improve Tuple constructor

Comment #5 on issue 2406 by renato.c...@gmail.com: improve Tuple constructor http://code.google.com/p/sympy/issues/detail?id=2406 Another point I just noticed is that sympify(tuple()) - tuple(), not a Tuple. So this is happening (in my branch): Tuple((1, x), 3).subs(x, 0) ...

Re: Issue 2265 in sympy: cse requires subexpressions to be in the exact same order

Updates: Status: Fixed Comment #16 on issue 2265 by andy.ter...@gmail.com: cse requires subexpressions to be in the exact same order http://code.google.com/p/sympy/issues/detail?id=2265 Sorry for not getting back to you. Thanks for pushing this in! -- You received this message

Issue 2412 in sympy: Sketch of Sister Celine's algorithm

Status: Accepted Owner: skr...@gmail.com Labels: Type-Enhancement Priority-Medium New issue 2412 by skr...@gmail.com: Sketch of Sister Celine's algorithm http://code.google.com/p/sympy/issues/detail?id=2412 Based on the algorithm explained in the book A=B (Chapter 4)