PHP tan() Function
PHP Math Reference
Example
Return 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));
?>
Run example »
Definition and Usage
The tan() function returns the tangent of a number.
Syntax
Parameter |
Description |
number |
Required. Specifies a value in radians |
Technical Details
Return Value: |
The tangent of number |
Return Type: |
Float |
PHP Version: |
4+ |
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