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From: numccann@ndsuvax.UUCP (Lester I. McCann)
Newsgroups: comp.graphics
Subject: Mandelbrot bug squashed
Message-ID: <2827@ndsuvax.UUCP>
Date: 11 Aug 89 21:15:22 GMT
Reply-To: numccann@ndsuvax.UUCP (Lester I. McCann)
Organization: North Dakota State University, Fargo
Lines: 14

Thanks to pell@isy.liu.se, I discovered why I was having so much trouble
with the Mandelbrot algorithm from Appendix D of The Science of Fractal
Images.  In the routine MDisk, the line listed as

	irad := INT(dist*side)

ought to be

	irad := INT(dist / side * (n-1))

A rather significant change, I'd say.

Lester McCann
numccann@plains.nodak.edu  or  numccann@ndsuvax.bitnet