Status: Accepted
Owner: ondrej.certik
Labels: Type-Defect Priority-Medium
New issue 2113 by ondrej.certik: integrate(cos(log(x**2))/x) hangs
http://code.google.com/p/sympy/issues/detail?id=2113
Before this commit:
https://github.com/sympy/sympy/commit/bf32cd36acaa6c1c3ba1dc8f16144d65ec86c708
it used to return an unevaluated integral:
In [1]: integrate(cos(log(x**2))/x)
Out[1]:
⌠
⎮ ⎛ ⎛ 2⎞⎞
⎮ cos⎝log⎝x ⎠⎠
⎮ ──────────── dx
⎮ x
⌡
in about 10s on my laptop. After this commit, it simply hangs. The commit
is quite simple, so it has something to do with simplification.
Aaron, would you know if your branch fixes this?
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