acosh() function in PHP

Thisacosh()The function returns the inverse hyperbolic cosine of a specified number.

Syntax

acosh(num)

parameter

• num-We want to find the inverse hyperbolic cosine of a number.

returns

Thisacosh()The function returns the inverse hyperbolic cosine of a number.

Example

<?php
　　　echo(acosh(1)  .  "<br>");
　　　echo(acosh(1.60)  .  "<br>");
?>

Output Result

0<br>1.0469679150032<br>