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PHP Quiz PHP CertificatePHP cosh() Function
Complete PHP Math Reference
Definition and Usage
The cosh() function returns the hyperbolic cosine of a number (equivalent to (exp(x) + exp(-x)) / 2).
Syntax
cosh(x)
| Parameter | Description |
|---|---|
| x | Required. A number |
Example
In the following example we will return the hyperbolic cosine of different numbers:
<?php
echo(cosh(3) . "<br />");
echo(cosh(-3) . "<br />");
echo(cosh(0) . "<br />");
echo(cosh(M_PI) . "<br />");
echo(cosh(2*M_PI))
?>
echo(cosh(3) . "<br />");
echo(cosh(-3) . "<br />");
echo(cosh(0) . "<br />");
echo(cosh(M_PI) . "<br />");
echo(cosh(2*M_PI))
?>
The output of the code above will be:
10.0676619958
10.0676619958
1
11.5919532755
267.746761484
10.0676619958
1
11.5919532755
267.746761484
Complete PHP Math Reference
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