Fractals/Real-world fractals

From Wikibooks, open books for an open world
Jump to: navigation, search
Clouds are not spheres, mountains are not cones, coastlines are not circles, and bark is not smooth, nor does lightning travel in a straight line.
—The Fractal Geometry of Nature (1982), Benoît Mandelbrot
Illustration of Vogel's formula of the pattern of sunflower florets. Image with src code