ArcCosh

ArcCosh[z] gives the inverse hyperbolic cosine cosh⁻¹(z) of the complex number z.

Examples

Evaluate the inverse hyperbolic cosine:

ArcCosh[2]
(* Log[2 + Sqrt[3]] *)

Numerical value:

N[ArcCosh[2]]
(* 1.31696 *)

Please visit the official Wolfram Language Reference for more details.