polygamma: fix expand(func=True) (#643)
commit96a3ab90cfab6f2e3b7a5b495da11b4d707fd34a
authorKirill Smelkov <kirr@landau.phys.spbu.ru>
Wed, 23 Jan 2008 21:58:47 +0000 (24 00:58 +0300)
committerKirill Smelkov <kirr@landau.phys.spbu.ru>
Wed, 23 Jan 2008 21:58:47 +0000 (24 00:58 +0300)
treec2bc3940c92992d8244bb58878022e0a603eac44
parent0851793b8e65950f01c4e4af737e9bb937a8929d
polygamma: fix expand(func=True)  (#643)

I don;t know polygamma, so I hadn't wrote tests, but I've created an issue for
this: #653
sympy/functions/special/gamma_functions.py
sympy/functions/special/tests/test_gamma_functions.py