sin
(PHP 4, PHP 5)
sin — Sine
Description
float sin
( float $arg
)
sin() returns the sine of the arg parameter. The arg parameter is in radians.
Parameters
- arg
-
A value in radians
Return Values
The sine of arg
Examples
Example#1 sin() example
<?php
// Precision depends on your precision directive
echo sin(deg2rad(60)); // 0.866025403 ...
echo sin(60); // -0.304810621 ...
?>