Two ways to do "Hello, World!" in GNU Octave. #Shorts
Full GNU Octave Tutorial: • GNU Octave - Full Tutorial For Beginners
To download Octave or read the documentation, visit Octave's website at: https://www.gnu.org/software/octave/.
This tutorial ran Octave from https://www.cocalc.com. For more information on running Octave from CoCalc, visit: https://cocalc.com/doc/octave.html.