sin

sin

Sine

float **sin** float $num

returns the sine of the 

parameter. The parameter is in radians. sin``num``num

numA value in radians

The sine of num

Voorbeeld: example

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

asin``sinh``cos``tan``deg2rad