array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'zh', ), 'this' => array ( 0 => 'function.stats-stat-binomial-coef.php', 1 => 'stats_stat_binomial_coef', 2 => 'Returns a binomial coefficient', ), 'up' => array ( 0 => 'ref.stats.php', 1 => 'Statistic 函数', ), 'prev' => array ( 0 => 'function.stats-standard-deviation.php', 1 => 'stats_standard_deviation', ), 'next' => array ( 0 => 'function.stats-stat-correlation.php', 1 => 'stats_stat_correlation', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/stats/functions/stats-stat-binomial-coef.xml', ), 'history' => array ( ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); contributors($setup); ?>

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