To depict the four MKSA core concepts of the SI in three dimensional
gector spaces and present the density of information and proposed
structure in common two dimensional media, some of this material has
has employed the debatable convention of treating permittivity, [k],
as dimensionless and associated with no amount of displacement.  As
for a helicopter pilot flying into Manhattan with only a street map,
the contention has been that even a map of insufficient dimension is
better than none at all, especially if the GDA technique is seen as
an alternative evolution of log tables and multidimensional use of
mathematical language.  With the four dimensional mappings included
in this writing, it is hoped that the advantages of the various
formats will be even easier to recognize.