sin

Sine

Description

float sin(float $num)

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

  • asin
  • sinh
  • cos
  • tan
  • deg2rad