gmp_binomial

(PHP 7 >= 7.3.0, PHP 8)

gmp_binomial — Calculates binomial coefficient

说明

gmp_binomial(GMP|int|string $n, int $k): GMP

Calculates the binomial coefficient C(n, k).

参数

n

GMP 对象或 int ，或数字string。

k

返回值

Returns the binomial coefficient C(n, k).

错误／异常

Throws ValueError if k is negative. Prior to PHP 8.0.0, E_WARNING was issued instead.

更新日志

版本 说明
8.0.0 This function no longer returns false on failure.
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