tf.math.igammac

Compute the upper regularized incomplete Gamma function Q(a, x).

View aliases

Main aliases

`tf.igammac`

Compat aliases for migration

See Migration guide for more details.

tf.compat.v1.igammac, tf.compat.v1.math.igammac, `tf.compat.v2.math.igammac`

tf.math.igammac(
    a, x, name=None
)

The upper regularized incomplete Gamma function is defined as:

\(Q(a, x) = Gamma(a, x) / Gamma(a) = 1 - P(a, x)\)

where

\(Gamma(a, x) = int_{x}^{\infty} t^{a-1} exp(-t) dt\)

is the upper incomplete Gama function.

Note, above P(a, x) (Igamma) is the lower regularized complete Gamma function.

Args
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).

Returns
A Tensor. Has the same type as a.