tensorflow::ops::Igamma

#include <math_ops.h>

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

Summary

The lower regularized incomplete Gamma function is defined as:

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

where

\(gamma(a, x) = int_{0}^{x} t^{a-1} exp(-t) dt\)

is the lower incomplete Gamma function.

Note, above Q(a, x) (Igammac) is the upper regularized complete Gamma function.

Arguments:

Returns: