sympy/csympy — pull request #290 by isuruf (2014-09-20 11:53:30+00:00)
Title: Nth root modulo

Added functions
* Legendre, Jacobi, Kronecker symbols
* nthroot_mod and nthroot_mod_list
* powermod and powermod_list
* quotient_mod

Changed functions
* divides (now runs faster)
* mod
* fdiv_q renamed => quotient_f