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- * - created 30 Nov 1990 by Ron Record (rr@sco.com)
- * based upon an algorithm published in the Sep 86 Scientific American
- * - added arguments to select between sqrt(), sin(), log(), and linear
- * functions (original was sqrt()).
- *
- * - Rewritten using X11 19 Apr 1993 by Ron Record (rr@sco.com)
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- Hop uses a system of parametric equations to iterate a point in the plane.
- The color of the point is incremented every "period" points displayed or,
- if you have selected the histogram option, the color is computed from the
- number of times that pixel has been "hit".
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