Issue 1892 in sympy: integrate(1/(x*(a+b*x)**3), x) fails

2010-04-08 Thread sympy
Status: Accepted Owner: ondrej.certik Labels: Type-Defect Priority-Medium New issue 1892 by ondrej.certik: integrate(1/(x*(a+b*x)**3), x) fails http://code.google.com/p/sympy/issues/detail?id=1892 In [6]: var("a b") Out[6]: (a, b) In [7]: integrate(1/(x*(a+b*x)**3), x) ERROR: An unexpected erro

Re: Issue 1892 in sympy: integrate(1/(x*(a+b*x)**3), x) fails

2010-04-08 Thread sympy
Updates: Owner: --- Comment #1 on issue 1892 by ondrej.certik: integrate(1/(x*(a+b*x)**3), x) fails http://code.google.com/p/sympy/issues/detail?id=1892 (No comment was entered for this change.) -- You received this message because you are listed in the owner or CC fields of this iss

Re: Issue 1892 in sympy: integrate(1/(x*(a+b*x)**3), x) fails

2010-04-08 Thread sympy
Updates: Labels: Integration Comment #2 on issue 1892 by asmeurer: integrate(1/(x*(a+b*x)**3), x) fails http://code.google.com/p/sympy/issues/detail?id=1892 It used to work, before the new polys: In [1]: var('a b');integrate(1/(x*(a+b*x)**3), x) Out[1]: (a, b) Out[1]: ⎛

Re: Issue 1892 in sympy: integrate(1/(x*(a+b*x)**3), x) fails

2010-04-08 Thread sympy
Updates: Status: Started Owner: mattpap Labels: Polynomial Milestone-Release0.7.0 Comment #3 on issue 1892 by mattpap: integrate(1/(x*(a+b*x)**3), x) fails http://code.google.com/p/sympy/issues/detail?id=1892 This is trivial to fix, and I will fix this soon. -- You recei

Re: Issue 1892 in sympy: integrate(1/(x*(a+b*x)**3), x) fails

2010-06-01 Thread sympy
Updates: Owner: asmeurer Comment #4 on issue 1892 by asmeurer: integrate(1/(x*(a+b*x)**3), x) fails http://code.google.com/p/sympy/issues/detail?id=1892 This has been fixed in polys9, and I have added a test for this in my latest WIP branch. -- You received this message because you a

Re: Issue 1892 in sympy: integrate(1/(x*(a+b*x)**3), x) fails

2010-08-23 Thread sympy
Updates: Blockedon: 2010 Comment #5 on issue 1892 by asmeurer: integrate(1/(x*(a+b*x)**3), x) fails http://code.google.com/p/sympy/issues/detail?id=1892 (No comment was entered for this change.) -- You received this message because you are subscribed to the Google Groups "sympy-issues"

Re: Issue 1892 in sympy: integrate(1/(x*(a+b*x)**3), x) fails

2010-08-23 Thread sympy
Comment #6 on issue 1892 by mattpap: integrate(1/(x*(a+b*x)**3), x) fails http://code.google.com/p/sympy/issues/detail?id=1892 btw. These are current results from polys11 branch: In [1]: var('a,b') Out[1]: (a, b) In [2]: f = 1/(x*(a+b*x)**3) In [3]: f Out[3]: 1 3

Re: Issue 1892 in sympy: integrate(1/(x*(a+b*x)**3), x) fails

2011-01-06 Thread sympy
Comment #7 on issue 1892 by asmeurer: integrate(1/(x*(a+b*x)**3), x) fails http://code.google.com/p/sympy/issues/detail?id=1892 So we really need to be implementing apart in integrate (issue 1280) to completely fix this. Anyway, the test is in my branch, so let's leave the issue open, but it

Re: Issue 1892 in sympy: integrate(1/(x*(a+b*x)**3), x) fails

2011-05-02 Thread sympy
Comment #8 on issue 1892 by matt...@gmail.com: integrate(1/(x*(a+b*x)**3), x) fails http://code.google.com/p/sympy/issues/detail?id=1892 It works in master: In [2]: var('a,b') Out[2]: (a, b) In [3]: integrate(1/(x*(a+b*x)**3), x) Out[3]: ⎛a⎞ - log⎜x + ─⎟ + log(x) ⎝b⎠

Re: Issue 1892 in sympy: integrate(1/(x*(a+b*x)**3), x) fails

2011-05-09 Thread sympy
Updates: Labels: NeedsReview asmeurer Comment #9 on issue 1892 by asmeurer: integrate(1/(x*(a+b*x)**3), x) fails http://code.google.com/p/sympy/issues/detail?id=1892 My patch from issue 1793 unfortunately makes the output of this a little more complicated, but it is still correct: In