PHP tanh() Function
Definition
The tanh() function returns the hyperbolic tangent of a number,
which is equal to sinh(x)/cosh(x).
Syntax
PHP tanh() Function has the following syntax.
tanh(number);Parameter
| Parameter | Is Required | Description |
|---|---|---|
| number | Required. | Specifies a number |
Return
| Return | Description |
|---|---|
| Return Value | The hyperbolic tangent of number |
| Return Type | Float |
Example
Return the hyperbolic tangent of different numbers:
<?php// w w w . j a v a 2s .co m
echo(tanh(M_PI_4) . "\n");
echo(tanh(0.5) . "\n");
echo(tanh(-0.5) . "\n");
echo(tanh(5) . "\n");
echo(tanh(1) . "\n");
echo(tanh(-1) . "\n");
echo(tanh(-10));
?>
The code above generates the following result.
