PHP Conference Nagoya 2025

trader_acos

(PECL trader >= 0.2.0)

trader_acosVector Trigonometric ACos

Description

trader_acos(array $real): array

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

Parameters

real

Array of real values.

Return Values

Returns an array with calculated data or false on failure.

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geekgirl dot joy at gmail dot com
3 years ago
$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)
}
*/
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