dismiss Step into the future! Click here to switch to the beta php.net site
downloads | documentation | faq | getting help | mailing lists | licenses | wiki | reporting bugs | php.net sites | conferences | my php.net

search for in the

cosh> <ceil
[edit] Last updated: Fri, 27 Sep 2013

view this page in

cos

(PHP 4, PHP 5)

cosCosine

Description

float cos ( float $arg )

cos() returns the cosine of the arg parameter. The arg parameter is in radians.

Parameters

arg

An angle in radians

Return Values

The cosine of arg

Examples

Example #1 cos() example

<?php

echo cos(M_PI); // -1

?>

See Also



add a note add a note User Contributed Notes cos - [1 notes]
up
2
felipensp at gmail dot com
7 years ago
Convert degree to radianus, radianus to cos.

<?php

   
// Degree
   
$degree = 360;

   
// Convertion
   
print cos(deg2rad($degree));

?>

 
show source | credits | stats | sitemap | contact | advertising | mirror sites