A way to display 
variables on a two-dimensional surface. For instance, let 
be eyebrow slant, 
be eye size, 
be nose length, etc. The above figures show faces produced
using 10 characteristics--head eccentricity, eye size, eye spacing, eye eccentricity,
pupil size, eyebrow slant, nose size, mouth shape, mouth size, and mouth opening)--each
assigned one of 10 possible values, generated using the Wolfram
Language.
