Southwest
Robert P. Munafo, 2010 Sep 20.
A colloquial direction and directional modifier referring to a direction between south and west. As with both of those terms, it can be used either in an absolute sense (relative to the real and imaginary axes) or as a relative direction (relative to a mumolecule).
The southwest external angle is 5/8, and the filament subset operator for the filament off the southwest point of a mumolecule is FS[(1/2(2/3B1)B1)t] (which can be abbreviated FS[2(2/3)]).
The colloquial term "southwest radical" refers to R2.3/5, because it touches R2a on its southwest side. Note that this is not the same place in the Mandelbrot set as the southwest external angle, which is at R2.1/2.2/3.
northwest  north  northeast 

 
southwest  south  southeast 
revisions: 20100920 first version
From the Mandelbrot Set Glossary and Encyclopedia, by Robert Munafo, (c) 19872017. Muency index
This page was written in the "embarrassingly readable" markup language RHTF, and was last updated on 2017 Feb 02. s.11