Iteration Formula
Instructions
- Scroll/Pinch: Zoom in/out
- Drag: Pan view
- Touch gestures supported
Explore the most famous fractal pattern - iterative computation on the complex plane
The Mandelbrot set is the most famous fractal pattern, popularized by mathematician Benoit Mandelbrot in 1980. It is defined as the set of all complex numbers c for which the iterative formula z_{n+1} = z_n^2 + c does not diverge to infinity.
For each point c on the complex plane, we start with zā = 0 and repeatedly apply the iteration formula z_{n+1} = z_n^2 + c. If |z_n| remains bounded (⤠2) after sufficient iterations, the point belongs to the Mandelbrot set (shown in black). If |z_n| exceeds 2, the point escapes to infinity, and we color it based on escape speed (iteration count).
The Mandelbrot set exhibits self-similarity - no matter how much you zoom in, you'll see similar structures and patterns. Its boundary is infinitely complex with a non-integer dimension (Hausdorff dimension ā 2). This infinite nested complexity makes the Mandelbrot set a classic example in chaos theory and fractal geometry.
Explore boundary regions for the richest details. Classic interesting areas include: Seahorse Valley (left side), Elephant Valley (bottom center), Triple Valley (top). Increasing iterations reveals finer edge details but reduces rendering speed.