ACOSH Inverse Hyperbolic Cosine Function

Section: Mathematical Functions

Usage

Computes the inverse hyperbolic cosine of its argument. The general syntax for its use is 
  y = acosh(x)

where x is an n-dimensional array of numerical type.

Function Internals

The acosh function is computed from the formula

where the log (and square root) is taken in its most general sense.

Examples

Here is a simple plot of the inverse hyperbolic cosine function 
--> x = linspace(1,pi);
--> plot(x,acosh(x)); grid('on');