Basin of Attraction — Newton Fractals

Newton's method for finding roots of complex polynomials partitions the complex plane into basins of attraction. Each root attracts a fractal region; boundaries between basins are infinitely intricate — a classic example of deterministic chaos in iteration.

z_{n+1} = z_n − f(z_n)/f'(z_n)  |  Basin boundary = Julia set of Newton map  |  dim ≈ 2 (space-filling boundary)