# jax.scipy.special.betainc¶

jax.scipy.special.betainc(a, b, x, out=None)[source]

LAX-backend implementation of betainc().

Original docstring below.

Incomplete beta function.

Computes the incomplete beta function, defined as 1:

$I_x(a, b) = \frac{\Gamma(a+b)}{\Gamma(a)\Gamma(b)} \int_0^x t^{a-1}(1-t)^{b-1}dt,$

for $$0 \leq x \leq 1$$.

Parameters
• a (array-like) – Positive, real-valued parameters

• b (array-like) – Positive, real-valued parameters

• x (array-like) – Real-valued such that $$0 \leq x \leq 1$$, the upper limit of integration

Returns

Value of the incomplete beta function

Return type

array-like

References

1

NIST Digital Library of Mathematical Functions https://dlmf.nist.gov/8.17