limited but very cool, would work well as a visual aid in schools, not that my school taught about fractals I just used to watch a lot of NOVA

Well I like fractals but this just seems kind of limited. I would try adding more fractals maybe. And maybe the ability to type in numbers for the variables as the sliders are a little finicky.

This is really cool, but you need to make it more obvious that you need to press "run" after every change. Otherwise, it looks like the sliders don't do anything.

Isn't this also called a Pythagoras tree?