Aliases:
tf.math.polygamma
tf.polygamma
tf.math.polygamma(
a,
x,
name=None
)
Defined in generated file: tensorflow/python/ops/gen_math_ops.py
.
Compute the polygamma function \(\psi^{(n)} (x)\).
The polygamma function is defined as:
\(\psi^{(n)} (x) = \frac{d^n}{dx^n} \psi(x)\)
where \(\psi(x)\) is the digamma function.
Args:
a
: ATensor
. Must be one of the following types:float32
,float64
.x
: ATensor
. Must have the same type asa
.name
: A name for the operation (optional).
Returns:
A Tensor
. Has the same type as a
.