tf.math.polygamma

Compute the polygamma function ψ(n)(x).

Compat aliases for migration

See Migration guide for more details.

tf.compat.v1.math.polygamma, tf.compat.v1.polygamma

The polygamma function is defined as:

ψ(a)(x)=dadxaψ(x)

where ψ(x) is the digamma function. The polygamma function is defined only for non-negative integer orders \a\.

a A Tensor. Must be one of the following types: float32, float64.
x A Tensor. Must have the same type as a.
name A name for the operation (optional).

A Tensor. Has the same type as a.