PHP sin()Functions
Examples
Returns 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));
?>
echo(sin(3) . "<br>");
echo(sin(-3) . "<br>");
echo(sin(0) . "<br>");
echo(sin(M_PI) . "<br>");
echo(sin(M_PI_2));
?>
Run Example »
Definition and Usage
The sin() function returns the sine of a number.
Syntax
sin(number);
| Parameters | Description |
|---|---|
| number | Required. Specifies a value in radians. |
Technical Details
| Return value: | numberThe sine of the number. |
|---|---|
| Return type: | Float |
| PHP Version: | 4+ |
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