Curly Gold Rectangular
Explanation of the Image...

Curly Gold Rectangular
This image, illuminated by the escape time algorithm, is created from the mathematical system defined by the expression z←z*z+c where z and c are complex numbers. The ← symbol signifies the iteration operation. The number z is the single state variable and the number c marks the place in the complex plane where the iteration begins. The map of all possible states for this system is just the complex plane. The domain of this image in the map of possible states is:
(-0.746684694, 0.11148175)/(-0.74657128, 0.11130596)
The depth of iteration is 200.

This image and the Curly Gold Polar image differ only in that the divergence threshold is calculated in rectangular coordinates here and in polar coordinates in the Curly Gold Polar image. Notice the extra scalloping in the background of the rectangular coordinate divergence threshold.