Quadrup Two Orbit Fractal

If your browser supported Java, You would see a nice fractal here.

This fractal's applet is just an extension of gingerbread's applet. It basically just replaces the formulas with these:

x_{n + 1} = y_n - sgn(x_n) * sin(ln|b * x_n - c|) * atan(|c * x_n - b|²)
y_{n + 1} = a - x_n

In this fractal, a, b and c are constants which, by default are initialised to 34, 1 and 5 respectively, although these can be changed with <param> tags.