Fractal

INSTRUCTIONS

FRACT1:     Generates a fractal based on user input.  Some good entries are:

     x=0 y=1
     y=0 x=1
     x=3 y=0

     The program generally takes a couple of minutes to run.
     Window size is how close to the fractal you want to get.  Smaller
     is closer.

FRACT4:     Fract4 takes the fractal algorithm used in fract1 and goes it one
     better.  It makes it 3 dimensional.  That is, it takes the fractal
     drawn in fract1, turns it ON EDGE, and plots it onto a SINGLE
     SCAN LINE of the monitor.  It then changes the fractal algorithm
     slightly (which is what the "change value for x and  y" is), and
     then recalculates the fractal on the next scan line.  It does
     this for all 200 scan lines in lo res color.  This amounts to
     something like 180 million double precision floating point
     calculations in less than 1/2 hour.  Pretty impressive for a
     lowly ST.  This algorithm is similar to one that people are
     using VAX 11/780s to calculate.  We're working on a fractal
     program to draw four dimensional dragons next.