
Mandelbrot Set
A simple iteration creates a boundary with extraordinary detail.

A square becomes an endlessly nested lattice of holes.
Locate the largest central hole, then the smaller central holes around it.
Johannes Rössel
Original file & attribution · Public domain
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Download imageA square becomes an endlessly nested lattice of holes.
Locate the largest central hole, then the smaller central holes around it.
Split a square into a three-by-three grid, remove the center, and repeat in each of the eight surviving squares. A finite image stops after a limited number of stages.