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

A close view reveals spirals, branching filaments, and smaller structures.
Compare the fine structures with the full Mandelbrot set. A downloaded image contains only the resolution and magnification recorded in that file.
Created by Wolfgang Beyer with the program Ultra Fractal 3.
Original file & attribution · CC BY-SA 3.0
This locally stored image is a Wikimedia Commons rendition (resized or rendered from the source file). The full original is linked from the source record. Gallery previews may be resized or converted to WebP; animated previews show the first frame.
Download imageA close view reveals spirals, branching filaments, and smaller structures.
Compare the fine structures with the full Mandelbrot set. A downloaded image contains only the resolution and magnification recorded in that file.
The same iteration is tested for nearby complex parameters at a finer scale. Similar structures recur, but the entire boundary is not a simple collection of exact scaled copies.