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)
}
}
*/