sympy/sympy — pull request #957 by Anxuiz (2012-01-11 05:04:30+00:00)
Title: Add an XFAIL test for issue 2587.

I've created an XFAIL test for issue 2587. One curious thing is that the test does not actually fail, though copying & pasting the exact code into a python shell will cause it to fail on the last assertion. Any thoughts?

Issue 2587: http://code.google.com/p/sympy/issues/detail?id=2587