stats_stat_powersum

(PECL stats >= 1.0.0)

stats_stat_powersum — Returns the power sum of a vector

说明

stats_stat_powersum(array $arr, float $power): float

Returns the sum of the power-th power of a vector represented as an array arr.

参数

arr

The input array

power

The power

返回值

Returns the power sum of the input array.