PHP asinh() Function

Return the inverse hyperbolic sine of different numbers:

<?php
echo(asinh(7) . "<br>");
echo(asinh(56) . "<br>");
echo(asinh(2.45));
?>

Definition and Usage

The asinh() function returns the inverse hyperbolic sine of a number.

asinh( number);

Parameter	Description
number	Required. Specifies a number

Return Value:	The inverse hyperbolic sine of number
Return Type:	Float
PHP Version:	4.1+
PHP Changelog:	PHP 5.3 - asinh() is now available on all platforms