gmp_binomial

(PHP 7 >= 7.3.0)

gmp_binomial — Calculates binomial coefficient

GMP gmp_binomial ( mixed $n , int $k )

Calculates the binomial coefficient C(n, k).

n: Either a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number.
k

Returns the binomial coefficient C(n, k), or FALSE on failure.

Issues E_WARNING if k is negative.