Cactus Fractal

$\begin{figure}\begin{center}\BoxedEPSF{Cactus_Fractal.epsf}\end{center}\end{figure}$

A Mandelbrot Set-like Fractal obtained by iterating the map

$\begin{displaymath} z_{n+1}={z_n}^3+(z_0-1)z_n-z_0. \end{displaymath}$