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Polygamma(AngouriMath.Entity,AngouriMath.Entity)

Method (no overloads)

Summary

The polygamma function, psi^(n)(z), the (n + 1)-th derivative of ln Gamma(z)

Parameter "order"

The order n, a whole number n >= 0

Parameter "argument"

The argument, any complex number but 0, -1, -2, ..., its poles

Returns

The Polygammaf node

Remarks

psi^(0) is the digamma function, Gamma'(z)/Gamma(z), which is what the derivative of
x! is written with: (x!)' = x! psi(x + 1). Each order is the derivative of the one before.
https://github.com/asc-community/AngouriMath/issues/171

AngouriMath

Table of contents

AngouriMath

Polygamma​(AngouriMath.​Entity,​AngouriMath.​Entity)

Polygamma(AngouriMath.Entity,AngouriMath.Entity)