#: 5731 S10/Tandy CoCo
    31-Jul-90  18:21:22
Sb: #5730-#Fractal.ar
Fm: James Jones 76257,562
To: Bruce MacKenzie 71725,376 (X)

Suggestions for the program (which *is* quite a nice one):

1. You might want to switch over to fixed-point arithmetic for speed--though it
does limit the zoom factor compared to floating-point, so perhaps not.

2. If you aren't already doing it, you might consider using an adaptive method,
namely doing the corners of a rectangle and then if the center comes out the
same as the corners, presume the whole rectangle takes on that value; otherwise
recur on the quadrants.  (One can do various things to avoid being faked out,
such as setting a minimum recursion level or subdividing the rectangle randomly
instead of always smack dab in the middle.)

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