sympy/sympy — pull request #3000 by hsgg (2014-03-05 02:30:27+00:00)
Title: Ufuncify argument order

This is my attempt at fixing the issue I reported last week, #2971 at https://github.com/sympy/sympy/issues/2971

I am not 100% sure about the solution, but it passes the test, and also works with my own program. Please have a look.