Nice tool!
I do not know if it has been requested already, but it would be great to enable multiple functions in graph mode to make comparing them easier and visually immediate. Perhaps they could also be faded except for the one the cursor hovers? Or perhaps this all could be explicitly controlled from the language itself, a bit like watch expressions in a debugger, at which point custom colours could also be a thing?
Anyway, thanks for your work!
You can already plot multiple functions actually, by listing them with commas, like so :)
f(x): x^2
g(x): sin(x)
f,g
Naut will "print" whatever it sees on the last line. If you give it a function (or a list), it will plot it (or them), and if you give it multiple numbers, it will print them.
It's a good idea to hover and highlight though! Custom colors could also be a thing, just need to add the idea of saving them to a user file somewhere (right now Naut doesn't load/save any data, it's self contained, but it wouldn't be a problem for "user customization" to live in some other folder I think)
I'm trying to avoid too much "styling control" in the code itself, since it's not really designed as a "picture maker" and I don't want to burden the language syntax, but I've considered stuff like @color(255,128,64) and things of that nature as optional "style comments". I think the primary colorizing would come from a global "settings" menu though, so I'd just allow setting the entire app's color scheme (including the colors for each plotted graph, up to 16 or something). It's not that I don't want it to be used for making pictures, it's just that it's a deep rabbit hole of scope, so I need some kind of self imposed guardrails :P So at the moment it's something like "customizing colors to your liking makes sense, but customizing colors and styles for a perfect diagram to use elsewhere" probably doesn't make sense.