(PECL trader >= 0.2.0)
trader_cos — Vector Trigonometric Cos
Calculates the cosine for each value in
real and returns the resulting array.
realArray of real values.
Returns an array with calculated data or false on failure.
<?php
$real = array(0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.1);
$result = trader_cos($real);
var_dump($result);
/*
array(12) {
[0]=>
float(1)
[1]=>
float(0.995)
[2]=>
float(0.98)
[3]=>
float(0.955)
[4]=>
float(0.921)
[5]=>
float(0.878)
[6]=>
float(0.825)
[7]=>
float(0.765)
[8]=>
float(0.697)
[9]=>
float(0.622)
[10]=>
float(0.54)
[11]=>
float(0.454)
}
}
*/