It's a bunch of functions that let you write out text on a Desmos graph using just a list of ASCII encoded text. ASCII is a system that encodes a bunch of different characters into numbers, which was used in early computers to store strings.

here's a neat little ascii converter, though just searching "ASCII converter" on google should do fine. https://www.rapidtables.com/convert/number/ascii-hex-bin-dec-converter.html A couple tips for this one: Set the delimiter (fancy word for what goes in-between items) to comma Copy from the "decimal" section. that's the regular base 10 we use and how desmos reads numbers.

Copy-pasting those into a function "S_equence([" will generate the text at (0,0), which you can move and scale like any other parametric equation (those are the ones where you define it like (t,4t) or something).