stats_stat_binomial_coef
(PECL stats >= 1.0.0)
stats_stat_binomial_coef — Returns a binomial coefficient
说明
stats_stat_binomial_coef
( int
$x
, int $n
) : float
Returns the binomial coefficient of n choose x.
参数
-
x -
The number of chooses from the set
-
n -
The number of elements in the set
返回值
Returns the binomial coefficient