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.
User Contributed Notes
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