PolyGamma
Gamma, Beta, Erf
PolyGamma[
z
]
Series representations
Generalized power series
Expansions of psi(-
n
+Epsilon) at Epsilon==0 (4 formulas)
For the function itself (4 formulas)
PolyGamma[
nu
,
z
]
© 1998- Wolfram Research, Inc.