well the person is Mr. Mandelbrot :bsmilie:
I'm not a mathematician lah, had to do Mandelbrot set (you're right!) graphical visualisation as part of my computer science course. actually at that time Mandelbrot set and fractals is something new and wonderful (early 80s) and we were using $20K Tektronics terminals to do these programs, ate up a ton of cpu time on the superminis too