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- 数学扩展
- Trader
- Trader 函数
trader_cos
(PECL trader >= 0.2.0)
trader_cos — Vector Trigonometric Cos
说明
trader_cos(array$real): array
Calculates the 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 1 note
up down 0 geekgirl dot joy at gmail dot com ¶1 year ago
<?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)
}
}
*/
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官方地址：https://www.php.net/manual/en/function.trader-cos.php