Trader 関数
PHP Manual

trader_atan

(PECL trader >= 0.2.0)

trader_atanVector Trigonometric ATan

説明

array trader_atan ( array $real )

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

パラメータ

real

実数値の配列

返り値

Returns an array with calculated data or false on failure.


Trader 関数
PHP Manual