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gmp_binomial

(PHP 7 >= 7.3.0)

gmp_binomialCalculates 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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