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cosh> <ceil
Last updated: Fri, 22 Aug 2008

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cos

(PHP 4, PHP 5)

cosCoseno

Descripción

float cos ( float $arg )

cos() devuelve el coseno del parámetro arg . El parámetro arg está en radianes.

Lista de parámetros

arg

Un ángulo en radianes

Valores retornados

El coseno de arg

Ejemplos

Example #1 Ejemplo de cos()

<?php

echo cos(M_PI); // -1

?>

Ver también



cosh> <ceil
Last updated: Fri, 22 Aug 2008
 
add a note add a note User Contributed Notes
cos
bruha at las wegos dot net
09-Aug-2008 07:45
Another way to figure out a triangle (more efficient)

<?php
$a
= 10; // a
$b = 15; // b

$angle = 45// angle opposite side c

$c = (sqrt(pow($a, 2) + pow($b, 2) - $a * $b * cos(deg2rad($angle)) * 2));

// side c = 10.613894770933
?>

yes im good arent i?
joescuriosityshoppe at gmail dot com
13-Oct-2006 02:55
Find the side of a triangle using two sides and an angle:
<?
$a = "10"; // length of side a
$b = "15"; // length of side b
$angle = "45";  // angle opposite side c

$c = (sqrt(pow($a, 2) + pow($b, 2) - $a * $b * cos(deg2rad($angle)) * 2));

// side c = 10.613894770933
?>
felipensp at gmail dot com
12-Mar-2006 05:29
Convert degree to radianus, radianus to cos.

<?php

   
// Degree
   
$degree = 360;

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

?>

cosh> <ceil
Last updated: Fri, 22 Aug 2008
 
 
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