PHP tan()Functions
Example
Returns the tangent of different numbers:
<?php
echo(tan(M_PI_4) . "<br>");
echo(tan(0.50) . "<br>");
echo(tan(-0.50) . "<br>");
echo(tan(5) . "<br>");
echo(tan(10) . "<br>");
echo(tan(-5) . "<br>");
echo(tan(-10));
?>
echo(tan(M_PI_4) . "<br>");
echo(tan(0.50) . "<br>");
echo(tan(-0.50) . "<br>");
echo(tan(5) . "<br>");
echo(tan(10) . "<br>");
echo(tan(-5) . "<br>");
echo(tan(-10));
?>
Run Example »
Definition and Usage
The tan() function returns the tangent of a number.
Syntax
tan(number);
| Parameter | Description |
|---|---|
| number | Required. Specifies a value in radians. |
Technical Details
| Return value: | numberThe tangent of. |
|---|---|
| Return type: | Float |
| PHP Version: | 4+ |
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