This was inspired by [url=https://www.geogebra.org/john.ulbright%40wayne.k12.in.us]John Ulbright's[/url] Interactive Number Grid. ( [url=https://www.geogebra.org/m/fFrhmsQZ]https://www.geogebra.org/m/fFrhmsQZ[/url] )[br]I used his fine work to learn how to do some scripting.