trader_acos

(PECL trader >= 0.2.0)

trader_acosVector 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)
}
*/