Install edenmath.app by entering the following commands in the terminal:
sudo apt update sudo apt install edenmath.app
Description:
Scientific calculator for GNUstep
EdenMath is a scientific calculator. It does standard arithmetic, probability, and trigonometric functions.
Homepage: http://www.eskimo.com/~pburns/EdenMath/
Version: 1.1.1a-7.1build2
Section: universe/math