Facebook Page Twitter Page LinkedIn Page
× PHP Tutorial PHP Advanced PHP Resources


The PHP asinh() function is used to return inverse hyperbolic sine of a value. The hyperbolic sine of x is defined as:

asinh

Syntax

asinh(number)

Parameters

number Required. Specify the value.

Return Value

Returns the inverse hyperbolic sine of a value.

Example:

In the below example, asinh() function is used to find out the inverse hyperbolic sine of a value.

<?php
  echo asinh(0)."\n";
  echo asinh(2)."\n";
  echo asinh(4)."\n";
?>

The output of the above code will be:

0
1.4436354751788
2.0947125472611

❮ PHP Math Functions