Escape-time fractals — These are defined by a recurrence relation at each point in a space (such as the complex plane). Examples of this type are the
Mandelbrot set

Julia set

Burning Ship fractal

*pics in courtesy of www.wikipedia.org
Iterated function systems — These have a fixed geometric replacement rule. Cantor set, Sierpinski carpet, Sierpinski gasket, Peano curve, Koch snowflake, Harter-Heighway dragon curve, T-Square, Menger sponge, are some examples of such fractals.
Sierpinski carpet

Sierpinski gasket

More interesting examples...
2-D tree generated using IFS

3-D trees generated using IFS






For more details on Iterated Function Systems,visit:
http://iteratedfunctions.blogspot.com/
Random fractals — Generated by stochastic rather than deterministic processes, for example, trajectories of the Brownian motion, Lévy flight, fractal landscapes and the Brownian tree. The latter yields so-called mass- or dendritic fractals, for example, diffusion-limited aggregation or reaction-limited aggregation clusters.
await for more details!!!!
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