Platon Talking Scientific Calculator for the Blind
How to use the ACOSH function
Scott Hanselman on Twitter: "Absolutely fantastic command line shell/ calculator for developers. https://t.co/OdroTdBZs7 by @xoofx install instantly with "dotnet tool install --global kalk" or use homebrew on Mac. Also works on Linux. Great
Inverse Hyperbolic Functions -- from Wolfram MathWorld