Re: Issue 790 in sympy: risch: PolynimialException when integrating not-so-trivial exponents

Issue 790: risch: PolynimialException when integrating not-so-trivial exponents http://code.google.com/p/sympy/issues/detail?id=790 This issue is now blocking issue 1127. See http://code.google.com/p/sympy/issues/detail?id=1127 -- You received this message because you are listed in the owner

Re: Issue 1127 in sympy: integrate(2*a/((((2*a)**2+x**2))**(3/2)),x) gives traceback

Updates: Blockedon: 790 Comment #7 on issue 1127 by asmeurer: integrate(2*a/2*a)**2+x**2))**(3/2)),x) gives traceback http://code.google.com/p/sympy/issues/detail?id=1127 (No comment was entered for this change.) -- You received this message because you are subscribed to the

Re: Issue 790 in sympy: risch: PolynimialException when integrating not-so-trivial exponents

Issue 790: risch: PolynimialException when integrating not-so-trivial exponents http://code.google.com/p/sympy/issues/detail?id=790 This issue is now blocking issue 1851. See http://code.google.com/p/sympy/issues/detail?id=1851 -- You received this message because you are listed in the owner

Re: Issue 1851 in sympy: Integral((-60*exp(x) - 19.2*exp(4*x))*exp(4*x), x).doit() failure

Updates: Blockedon: 790 Comment #3 on issue 1851 by asmeurer: Integral((-60*exp(x) - 19.2*exp(4*x))*exp(4*x), x).doit() failure http://code.google.com/p/sympy/issues/detail?id=1851 (No comment was entered for this change.) -- You received this message because you are subscribed to

Issue 2026 in sympy: Exact substitution

Status: Accepted Owner: asmeurer CC: smichr Labels: Type-Enhancement Priority-Medium Matching New issue 2026 by asmeurer: Exact substitution http://code.google.com/p/sympy/issues/detail?id=2026 This has been discussed several times, but I don't think an issue has ever been created for it.

Re: Issue 1836 in sympy: subs can see the 2 arg sum

Issue 1836: subs can see the 2 arg sum http://code.google.com/p/sympy/issues/detail?id=1836 This issue is now blocking issue 2026. See http://code.google.com/p/sympy/issues/detail?id=2026 -- You received this message because you are listed in the owner or CC fields of this issue, or because you

Re: Issue 2026 in sympy: Exact substitution

Issue 2026: Exact substitution http://code.google.com/p/sympy/issues/detail?id=2026 This issue is now blocking issue 2010. See http://code.google.com/p/sympy/issues/detail?id=2010 -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred

Re: Issue 1778 in sympy: Rational from string can be improved

Comment #40 on issue 1778 by smichr: Rational from string can be improved http://code.google.com/p/sympy/issues/detail?id=1778 Another issue that this branch addresses is the sympification of longs: S('222/111') 2L With the changes of this branch, the result is the Integer

Re: Issue 1069 in sympy: 'together' should not expand denominators

Updates: Status: Started Owner: mattpap Labels: Milestone-Release0.7.0 NeedsReview Comment #2 on issue 1069 by mattpap: 'together' should not expand denominators http://code.google.com/p/sympy/issues/detail?id=1069 On polys11 branch I fixed and improved together().

Re: Issue 1900 in sympy: factor((1+2*x+x**2)**100) works too hard

Updates: Status: Started Owner: mattpap Labels: Milestone-Release0.7.0 NeedsReview Comment #6 on issue 1900 by mattpap: factor((1+2*x+x**2)**100) works too hard http://code.google.com/p/sympy/issues/detail?id=1900 This issue was recently fixed in polys11 branch: In

Issue 2027 in sympy: Mul.flatten violates power rules

Status: Accepted Owner: smichr Labels: Type-Defect Priority-Medium New issue 2027 by smichr: Mul.flatten violates power rules http://code.google.com/p/sympy/issues/detail?id=2027 I thought I had all of these tracked down but just found another place where power rules are being broken when the

Re: Issue 527 in sympy: guessing what functions, like integrate, roots, factor, apart (and many more), should do with the given expression

Updates: Summary: guessing what functions, like integrate, roots, factor, apart (and many more), should do with the given expression Status: Started Labels: Milestone-Release0.7.0 Comment #6 on issue 527 by mattpap: guessing what functions, like integrate, roots, factor,

Re: Issue 2020 in sympy: Symbols Matrices

Comment #7 on issue 2020 by chr.schu...@gmx.de: Symbols Matrices http://code.google.com/p/sympy/issues/detail?id=2020 I like the idea of adapting the Indexed class. Is there any description available what Indexed should be used for? Is the interaction with Matrix and Symbol a part of it?

Re: Issue 2027 in sympy: Mul.flatten violates power rules

Updates: Labels: WrongResult Comment #1 on issue 2027 by asmeurer: Mul.flatten violates power rules http://code.google.com/p/sympy/issues/detail?id=2027 Maple leaves both variants alone by default. (-2)**x*(-3)**x; x x

Re: Issue 527 in sympy: guessing what functions, like integrate, roots, factor, apart (and many more), should do with the given expression

Comment #7 on issue 527 by asmeurer: guessing what functions, like integrate, roots, factor, apart (and many more), should do with the given expression http://code.google.com/p/sympy/issues/detail?id=527 I don't like how integrate(x*y) automatically integrates with respect to all the

Re: Issue 2027 in sympy: Mul.flatten violates power rules

Comment #2 on issue 2027 by smichr: Mul.flatten violates power rules http://code.google.com/p/sympy/issues/detail?id=2027 For them to come together? You can only bring in 1 negative if you don't know the exponent is an integer. And for the ((-1)**x)**2, that is always equal to (-1)**(2*x)

Issue 2028 in sympy: invalid combination of bases

Status: Accepted Owner: smichr Labels: Type-Defect Priority-Medium New issue 2028 by smichr: invalid combination of bases http://code.google.com/p/sympy/issues/detail?id=2028 This is like issue 2027 but I think the same code is not being traversed...this particular invalid combining of bases

Re: Issue 2028 in sympy: invalid combination of bases

Comment #1 on issue 2028 by asmeurer: invalid combination of bases http://code.google.com/p/sympy/issues/detail?id=2028 Wait, how is it different? -- 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 2028 in sympy: invalid combination of bases

Comment #2 on issue 2028 by smichr: invalid combination of bases http://code.google.com/p/sympy/issues/detail?id=2028 Same problem, different source AFAICT. -- 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 2028 in sympy: invalid combination of bases

Comment #3 on issue 2028 by asmeurer: invalid combination of bases http://code.google.com/p/sympy/issues/detail?id=2028 So, you know that you can change the summary of an issue. No need to create a new one. By the way, how do you know that isn't coming from Mul.flatten()? It seems to me

Re: Issue 2028 in sympy: invalid combination of bases

Updates: Status: Duplicate Mergedinto: 2027 Comment #4 on issue 2028 by asmeurer: invalid combination of bases http://code.google.com/p/sympy/issues/detail?id=2028 (No comment was entered for this change.) -- You received this message because you are subscribed to the Google

Re: Issue 2027 in sympy: Mul.flatten violates power rules

Comment #3 on issue 2027 by asmeurer: Mul.flatten violates power rules http://code.google.com/p/sympy/issues/detail?id=2027 Issue 2028 has been merged into this issue. -- You received this message because you are subscribed to the Google Groups sympy-issues group. To post to this group, send

Re: Issue 2027 in sympy: Invalid combination of bases

Updates: Summary: Invalid combination of bases Comment #4 on issue 2027 by asmeurer: Invalid combination of bases http://code.google.com/p/sympy/issues/detail?id=2027 (No comment was entered for this change.) -- You received this message because you are subscribed to the Google Groups

Re: Issue 1900 in sympy: factor((1+2*x+x**2)**100) works too hard

Comment #7 on issue 1900 by smichr: factor((1+2*x+x**2)**100) works too hard http://code.google.com/p/sympy/issues/detail?id=1900 That's good news. Thanks for the update. Looking forward to seeing the new polys. -- You received this message because you are subscribed to the Google Groups

Re: Issue 1900 in sympy: factor((1+2*x+x**2)**100) works too hard

Comment #8 on issue 1900 by smichr: factor((1+2*x+x**2)**100) works too hard http://code.google.com/p/sympy/issues/detail?id=1900 btw I left a comment on http://github.com/mattpap/sympy-polys/commit/e88c0d0. Do you read those commit comments? I'm not sure where else to leave feedback for