trader_acos

(PECL trader >= 0.2.0)

trader_acos — Vector Trigonometric ACos

说明

trader_acos ( array $real ) : array

Calculates the arc cosine for 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.

User Contributed Notes

geekgirl dot joy at gmail dot com 31-Jan-2021 05:24


$real = array(1, 0.5, 1, 0.5, 0.2, 0.3, 0.5, 0.8, 0.9, 0.5);

$result = trader_acos($real);

var_dump($result);

/*

array(10) {

  [0]=>

  float(0)

  [1]=>

  float(1.047)

  [2]=>

  float(0)

  [3]=>

  float(1.047)

  [4]=>

  float(1.369)

  [5]=>

  float(1.266)

  [6]=>

  float(1.047)

  [7]=>

  float(0.644)

  [8]=>

  float(0.451)

  [9]=>

  float(1.047)

}

*/