sympy/sympy — pull request #1132 by manoj2378 (2012-03-17 13:34:01+00:00)
Title: Gamma Function: Simplified output for Rational Inputs

@ness01
I Hope this is what you meant
Patch Status :
In [1]: gamma(Rational(-10,3))
Out[1]:
81⋅Γ(2/3)
─────────
280

In [4]: gamma(Rational(19,8))
Out[4]:
33⋅Γ(3/8)
─────────
64

Present Status:
In [12]: gamma(Rational(-10,3))
Out[12]: Γ(-10/3)

In [14]: gamma(Rational(19,8))
Out[14]: Γ(19/8)