sin

(PHP 4, PHP 5, PHP 7, PHP 8)

sin — Sine

Description

sin(float $num): float

sin() returns the sine of the num parameter. The num parameter is in radians.

Parameters

num

A value in radians

Return Values

The sine of num

Examples

Example #1 sin() example

<?php
// Precision depends on your precision directive
echo sin(deg2rad(60)), PHP_EOL; // 0.866025403 ...
echo sin(60), PHP_EOL; // -0.304810621 ...
?>

See Also