How to Install GNU Octave Flatpak on Red Hat Gnu/Linux 7

Installing

2. 2. Installing Flatpak

   How to Setup Flatpak on Red Hat Linux 7

   Flatpak Red Hat Linux 7 Installation Guide

   Flatpak Red Hat Linux 7 Setup

3. 3. Installing GNU Octave

   Then to Install GNU Octave Flatpak App on Mint.

   flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo

   For further Insight see the Flatpak Official Documentation.
   And after:

   flatpak install org.octave.Octave

   The Flatpak App Setup do Not need the sudo Command because then it Runs confined into a Sandbox.
   However, you’ll be Prompted to Authenticate with your User’s Admin Pass.
   Then Confirm the proposed Setup with ‘Enter’ and Wait patiently until the App is Downloaded, Built and Installed.