polygamma - Wolfram|Alpha

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Input interpretation

PolyGamma (Wolfram Language symbol)

Usage

PolyGamma[z] gives the digamma function ψ (z).
PolyGamma[n, z] gives the n ^th derivative of the digamma function ψ^(n) (z).

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Attributes

Listable | NumericFunction | Protected | ReadProtected

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