PolyGamma
Gamma, Beta, Erf
PolyGamma[
nu
,
z
]
Series representations
Generalized power series (32 formulas)
Expansions at generic point
z
==
z
0
(5 formulas)
Expansions on branch cuts (4 formulas)
Expansions at
z
==0 (11 formulas)
Expansions at
z
==-
m
(8 formulas)
Expansions of psi
(nu)
(-
m
+Epsilon) at Epsilon==0 (4 formulas)
PolyGamma[
z
]