gmp_binomial

(PHP 7 >= 7.3.0)

gmp_binomial — Calculates binomial coefficient

说锟斤拷

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

Calculates the binomial coefficient C(n, k).

锟斤拷锟斤拷

n

锟斤拷锟斤拷锟斤拷一锟斤拷 GMP 锟斤拷锟斤拷 resouce锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷转锟斤拷为锟斤拷值锟斤拷锟街凤拷锟斤拷锟斤拷

k

锟斤拷锟斤拷值

Returns the binomial coefficient C(n, k), 锟斤拷锟斤拷锟斤拷失锟斤拷时锟斤拷锟斤拷 FALSE.

锟斤拷锟斤拷锟届常

Issues E_WARNING if k is negative.