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PHP sin() Function

< PHP Math Reference

Example

Return the sine of different numbers:

<?php
echo(sin(3) . "<br>");
echo(sin(-3) . "<br>");
echo(sin(0) . "<br>");
echo(sin(M_PI) . "<br>");
echo(sin(M_PI_2));
?>

Definition and Usage

The sin() function returns the sine of a number.

Syntax

sin(number);

Parameter	Description
number	Required. Specifies a value in radians

Technical Details

Return Value:	The sine of number
Return Type:	Float
PHP Version:	4+

< PHP Math Reference