Hi Keir

On Thu, Apr 8, 2010 at 3:23 PM, Keir Mierle <[email protected]> wrote:
> I was trying to compute the expected value of log(x) under the gamma
> distribution, but sympy hangs using 100% CPU, and appears to be inside a
> recursion loop:

Thanks for the bug report. I reported it here:

http://code.google.com/p/sympy/issues/detail?id=1893

Seems like a bug in sympy. I am pretty sure that we can't do this yet.
You should be able to calculate it at least numerically if you choose
some "k".

Ondrej

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