Although I always was terrible in mathematics at school one of the first things I admired on computers was the mandelbrot phenomenon. Daniel White tries to expand the usual 2-dimensional ways of displaying the graphical outputs of the mandelbrot formula into the third dimension (at least in a graphical way, as far as I understood his explanations – but like I said, I am a complete idiot when it comes to understand mathematical problems). What comes around is incredibly awesome. I mean, believe it or not: those pictures are created by a formula! With some astonishing help by Daniel, of course. Please visit his page and read how he did it. There are also some hints in the text to other people working on stuff like that and a forum full of fractal-fans and stuff.
I mean: Numbers! Isn’t that beautiful?