sin

(PHP 3, 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.

Example 1. sin() example

<?php

// Precision depends on your precision directive
echo sin(deg2rad(60));  //  0.866025403 ...
echo sin(60);           // -0.304810621 ...

?>

See also: asin(), cos(), tan(), and deg2rad().


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