Install xppaut by entering the following commands in the terminal:
sudo apt update sudo apt install xppaut
Description:
Phase Plane Plus Auto: Solves many kinds of equations
XPPAUT is a tool for solving * differential equations, * difference equations, * delay equations, * functional equations, * boundary value problems, and * stochastic equations. . The code brings together a number of useful algorithms and is extremely portable. All the graphics and interface are written completely in Xlib which explains the somewhat idiosyncratic and primitive widgets interface.
Homepage: http://www.math.pitt.edu/~bard/xpp/xpp.html
Version: 6.11b+1.dfsg-1build1
Section: universe/science