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gmp_binomial

(PHP 7 >= 7.3.0)

gmp_binomial — Calculates binomial coefficient

gmp_binomial ( mixed $n , int $k ) : GMP

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.

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