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

geekgirl dot joy at gmail dot com 03-Feb-2021 05:48


<?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)

}

}

*/