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 — Kosinus
Beschreibung
float cos
( float $arg
)
cos() berechnet den Kosinus des Winkels arg .
Parameter-Liste
- arg
-
Ein Winkel in Bogenmaß
Rückgabewerte
Der Kosinus des Winkels arg
Beispiele
Beispiel #1 cos() Beispiel
<?php
echo cos(M_PI); // -1
?>
add a note
User Contributed Notescos
bruha at las wegos dot net
10-Aug-2008 04:45
10-Aug-2008 04:45
joescuriosityshoppe at gmail dot com
13-Oct-2006 11:55
13-Oct-2006 11:55
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 02:29
12-Mar-2006 02:29
Convert degree to radianus, radianus to cos.
<?php
// Degree
$degree = 360;
// Convertion
print cos(deg2rad($degree));
?>