External Angle Plot
Robert P. Munafo, 2003 Oct 6.
A Mandelbrot set image that shows External Angles.
The simplest is the binary decomposition method, which amounts to setting a high escape radius and choosing one color or another based on whether the final (escaped) value of Z is above or below the real axis.
More elaborate external angle plots can pick from several or many colors, to try to show the angle in greater detail.
From the Mandelbrot Set Glossary and Encyclopedia, by Robert Munafo, (c) 1987-2017. Mu-ency index
This page was written in the "embarrassingly readable" markup language RHTF, and was last updated on 2017 Feb 02. s.11