Trader 函数
PHP Manual

trader_sqrt

(PECL trader >= 0.2.0)

trader_sqrtVector Square Root

说明

array trader_sqrt ( array $real )

Calculates the square root of each value in real and returns the resulting array.

参数

real

浮点数数组。

返回值

Returns an array with calculated data or false on failure.


Trader 函数
PHP Manual