trader_atan
(PECL trader >= 0.2.0)
trader_atan — Vector Trigonometric ATan
說明
array trader_atan
( array
$real
)
Calculates the arc tangent for each value in
real and returns the resulting array.
參數
-
real -
浮點數陣列。
回傳值
Returns an array with calculated data or false on failure.
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