ceil
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?
cos
(PHP 4, PHP 5)
cos — Cosine
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
?>
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User Contributed Notes
cos
bruha at las wegos dot net
09-Aug-2008 07:45
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));
?>