FRACTALS  ARE CHARACTERIZED BY the repetition of similar patterns at ever-diminishing scales. Fractal geometry has emerged as one of the most exciting frontiers on the border between mathematics and information  technology and can be seen in many of the swirling patterns produced by computer graphics. It has become a new tool for modeling in biology, geology, and other natural sciences. Anthropologists have observed that the patterns produced in different cultures   can be characterized by specific design themes. In Europe and America, we often see cities laid out in a grid pattern of straight streets and right-angle corner.

         In contrast, traditional African settlements tend to use fractal structures�circles of circles of circular dwellings, rectangular walls enclosing ever-smaller rectangles, and streets in which broad avenues branch down to tiny footpaths with striking geometric repetition. These indigenous fractals are    not limited to architecture; their recursive patterns echo throughout many disparate   African designs and knowledge systems. Ron Eglash, AFRICAN FRACTALS, Rutgers University Press, 1999.


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