Re: Issue 2818 in sympy: factor() returns nan

Updates: Labels: WrongResult Comment #1 on issue 2818 by asmeu...@gmail.com: factor() returns nan http://code.google.com/p/sympy/issues/detail?id=2818 (No comment was entered for this change.) -- You received this message because you are subscribed to the Google Groups "sympy-issues" g

Issue 2820 in sympy: expand() doesn't work in the denominator

Status: Accepted Owner: Labels: Type-Defect Priority-Medium New issue 2820 by asmeu...@gmail.com: expand() doesn't work in the denominator http://code.google.com/p/sympy/issues/detail?id=2820 Quoting Bastian Weber from the mailing list: Hello, I just got some results that I belive not

Re: Issue 975 in sympy: real and imag properties for Basic

Updates: Status: WontFix Comment #4 on issue 975 by ronan.l...@gmail.com: real and imag properties for Basic http://code.google.com/p/sympy/issues/detail?id=975 In its current meaning, Basic shouldn't have .real or .imag - this only makes sense for complex numbers. -- You received

Re: Issue 576 in sympy: __mul__, __add__ (and others) in Basic, or scattered all over SymPy?+tests

Updates: Status: Duplicate Mergedinto: 1941 Comment #2 on issue 576 by ronan.l...@gmail.com: __mul__, __add__ (and others) in Basic, or scattered all over SymPy?+tests http://code.google.com/p/sympy/issues/detail?id=576 This seems rather obsolete. I suppose that issue 1941 is

Re: Issue 1941 in sympy: Objects that know how to combine themselves

Comment #7 on issue 1941 by ronan.l...@gmail.com: Objects that know how to combine themselves http://code.google.com/p/sympy/issues/detail?id=1941 Issue 576 has been merged into this issue. -- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To

Re: Issue 1549 in sympy: substitutions in formal derivatives don't work well

Updates: Status: Fixed Comment #1 on issue 1549 by ronan.l...@gmail.com: substitutions in formal derivatives don't work well http://code.google.com/p/sympy/issues/detail?id=1549 This works now: In [10]: h = f(x).subs(x, x**2).diff(x) * (x + 1/x) In [11]: h Out[11]: ⎛1⎞ ⎛ d

Re: Issue 1322 in sympy: f(x**2).diff(x).diff(x) should get simplified more

Updates: Status: Fixed Comment #1 on issue 1322 by ronan.l...@gmail.com: f(x**2).diff(x).diff(x) should get simplified more http://code.google.com/p/sympy/issues/detail?id=1322 In [9]: f(x**2).diff(x).diff(x) Out[9]: ⎛ 2⎞│ 2 ⎜ d ⎟│ ⎛ d⎞│ 4⋅x ⋅

Re: Issue 1076 in sympy: integrate(sqrt(r**2-x**2), (x, -r, r)) cannot do it.

Updates: Status: Fixed Comment #2 on issue 1076 by ronan.l...@gmail.com: integrate(sqrt(r**2-x**2), (x, -r, r)) cannot do it. http://code.google.com/p/sympy/issues/detail?id=1076 In [3]: r = Symbol('r', positive=True) In [4]: 2*integrate(sqrt(r**2-x**2), (x, -r, r)) Out[4]: 2 π⋅r

Re: Issue 1084 in sympy: implement IntegerPart[GoldenRatio^100]

Updates: Status: Invalid Comment #2 on issue 1084 by ronan.l...@gmail.com: implement IntegerPart[GoldenRatio^100] http://code.google.com/p/sympy/issues/detail?id=1084 This has always worked, apparently. -- You received this message because you are subscribed to the Google Groups "sy

Re: Issue 2819 in sympy: simplify(sqrt(x**2)) does not yield x

Updates: Status: Accepted Labels: Assumptions Simplify Comment #1 on issue 2819 by asmeu...@gmail.com: simplify(sqrt(x**2)) does not yield x http://code.google.com/p/sympy/issues/detail?id=2819 Yes, unfortunately, the new assumptions have not yet been merged with the rest of

Re: Issue 782 in sympy: getting rid of the limit_series

Updates: Status: Fixed Comment #2 on issue 782 by ronan.l...@gmail.com: getting rid of the limit_series http://code.google.com/p/sympy/issues/detail?id=782 limits_series has been removed a long time ago. -- You received this message because you are subscribed to the Google Groups "s

Re: Issue 562 in sympy: improving Lambda

Updates: Status: Fixed Comment #2 on issue 562 by ronan.l...@gmail.com: improving Lambda http://code.google.com/p/sympy/issues/detail?id=562 Seems obsolete. The needed functionalities have been implemented now, I guess - and if not, a new issue referring to the current state of the cod

Re: Issue 1840 in sympy: atoms is non-greedy

Updates: Status: Fixed Comment #5 on issue 1840 by ronan.l...@gmail.com: atoms is non-greedy http://code.google.com/p/sympy/issues/detail?id=1840 Oh, right. I didn't notice that the behaviour of.atoms() had changed. I bisected it to the fix for issue 2007 (which was actually a duplicate

Re: Issue 1840 in sympy: atoms is non-greedy

Comment #4 on issue 1840 by asmeu...@gmail.com: atoms is non-greedy http://code.google.com/p/sympy/issues/detail?id=1840 This now gives: In [111]: (1+(1+log(x))**2).atoms(Function, Pow) Out[111]: ⎛2⎞ set⎝(log(x) + 1) , log(x)⎠ In [112]: (log(x**2)**2).atoms(Function, Pow

Re: Issue 2813 in sympy: solve(x**2 - x - 0.1) doesn't give both solutions

Comment #2 on issue 2813 by nicolas@gmail.com: solve(x**2 - x - 0.1) doesn't give both solutions http://code.google.com/p/sympy/issues/detail?id=2813 I used git bisect to find the faulty commit: 35c02dc7f90201831ce4c05d8e5897082426644e is the first bad commit commit 35c02dc7f90201831ce4c

Issue 2819 in sympy: simplify(sqrt(x**2)) does not yield x

Status: New Owner: Labels: Type-Defect Priority-Medium New issue 2819 by serge.al...@gmail.com: simplify(sqrt(x**2)) does not yield x http://code.google.com/p/sympy/issues/detail?id=2819 global_assumptions.add(Q.positive(x)) print simplify(sqrt(x**2)) (x**2)**(1/2) -- You received thi