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FLINT`PolyGamma

Status: Stable

documented, exercised by the test suite and/or worked examples, with no known limitations recorded.

Description

FLINT`PolyGamma[n, z] gives the numeric value of the n-th derivative of the digamma function (n = 0 is digamma) via FLINT (acb_polygamma), to the precision of the arguments. Unevaluated for symbolic arguments or at a pole.

Examples

All examples below are verified against the current Mathilda build.

In[1]:= FLINT`PolyGamma[1, 2]
Out[1]= 0.6449340668482264

Implementation notes

Attributes: Protected.

Implementation status

Stable — documented, exercised by the test suite and/or worked examples, with no known limitations recorded.

References