sympy/sympy — pull request #1128 by manoj2378 (2012-03-15 19:32:50+00:00)
Title: Inverse Jacobian for real arguments

@asmeurer , @Krastanov
I have written functions which can compute inverse of jacobian elliptic functions sn ns cd dn etc.I have also verified the answers with http://wolframalpha.com.They proved to be a perfect match.I have also written test_inversejacobian.py.Please tell me if there is anything i have to add/delete.

Thank you,
Manoj Babu
Btech IIT Kharagpur