Main Diagonal Symmetry
Robert P. Munafo, 2002 Nov 29.
The main diagonal is the plane in Julia-Mandelbrot Space defined by Z=C.
If you are viewing an area of the Mandelbrot Set near a point P, then the most obvious features of the filaments in the area will resemble the Julia Set for C=P. Furthermore, the region near that point P in that Julia Set will resemble a region near P in the Mandelbrot Set, except for a scaling and rotation.
From the Mandelbrot Set Glossary and Encyclopedia, by Robert Munafo, (c) 1987-2018. Mu-ency index
This page was written in the "embarrassingly readable" markup language RHTF, and was last updated on 2018 Feb 04. s.11