Trader 函数
PHP Manual

trader_asin

(PECL trader >= 0.2.0)

trader_asinVector Trigonometric ASin

说明

array trader_asin ( array $real )

Calculates the arc sine for each value in real and returns the resulting array.

参数

real

Array of real values.

返回值

Returns an array with calculated data or false on failure.


Trader 函数
PHP Manual