PHP tanh() Function
Example
Return the hyperbolic tangent of different numbers:
<?php
echo(tanh(M_PI_4) . "<br>");
echo(tanh(0.50) . "<br>");
echo(tanh(-0.50) . "<br>");
echo(tanh(5) . "<br>");
echo(tanh(10) . "<br>");
echo(tanh(-5) . "<br>");
echo(tanh(-10));
?>
Run example »
Definition and Usage
The tanh() function returns the hyperbolic tangent of a number, which is equal to sinh(x)/cosh(x).
Syntax
tanh(number);
| Parameter | Description |
|---|---|
| number | Required. Specifies a number |
Technical Details
| Return Value: | The hyperbolic tangent of number |
|---|---|
| Return Type: | Float |
| PHP Version: | 4.1+ |
PHP Math Reference
