This is awesome in (for me) at least two dimensions at the same time: it's a very interesting way of visualizing the actual math concept going on, by making the equation 3D to match what it's modelling. At the same time, it's very impressive technically that this can be done at all, and done without active per-frame custom code.<p>That this amount of "whoa that's not a 2D document" can be done by the web's standard stylizing technology is amazing. I'm not (again, personally) 100% convinced it <i>should</i> be this amazing[*], but that's another discussion.<p>Well done.<p>[*]: I'm just afraid of the complexity level in modern browsers, that's the other side of the "wow it can do that?" coin.