PHP cosh() Function
Definition and Usage
The cosh() function returns the hyperbolic cosine of a number.
Syntax
cosh(x)
| Parameter | Description |
|---|---|
| x | Required. A number. |
Description
Returns x The hyperbolic cosine value, defined as (exp(arg) + exp(-arg))/2.
Example
In this example, we will return the hyperbolic cosine of different numbers:
<?php echo(cosh(3); echo(cosh(-3); echo(cosh(0); echo(cosh(M_PI); echo(cosh(2*M_PI)); ?>
Output:
10.0676619958 10.0676619958 1 11.5919532755 267.746761484
