I've seen a lot of mathematical visualizations floating around, with nice JS widgets to tweak function values and formulas and whatnot. It'd be incredible to ha

I've seen a lot of mathematical visualizations floating around, with nice JS widgets to tweak function values and formulas and whatnot. It'd be incredible to have a platform to build your own visualizations, built on top of a message board. I'd imagine an interaction like "why does f(x-a) shift f(x) to the right and not left?", where teachers and students could explain the answer with a graph that showed certain values as you slide a knob to adjust 'a'. Using some cleverly defined/usable toolkit. It sounds really tough to pull off, but I'm optimistic!