sympy/sympy — pull request #2829 by bjodah (2014-01-25 19:11:19+00:00)
Title: Cse on indexed

cse chokes on Indexed instances at the moment. This PR is meant to fix that.
See https://groups.google.com/forum/?fromgroups=#!topic/sympy/nf88XzeF9Wc

Tests need to be added.