Category:Polygamma Function

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This category contains results about the polygamma function.

The $n$th polygamma function, $\psi_n$, is defined, for $z \in \C \setminus \Z_{\le 0}$, by the $n$th derivative of the digamma function:

$\map {\psi_n} z = \dfrac {\d^n} {\d z^n} \map \psi z$

where $\psi$ is the digamma function.

Pages in category "Polygamma Function"

The following 3 pages are in this category, out of 3 total.