Nonlinear Projections - Transformations and Projections in Computer Graphics - page 215

The Miller cylindrical projection is often selected by cartographers for atlas maps
of the world instead of the more popular Mercator projection. Evidently, some mapping
experts feel that this variant is somewhat more appropriate or is simply more pleasing
to the eye.
Nonlinear: Behaving in an erratic and unpredictable fashion;
unstable. When used to describe the behavior of a machine or
program, it suggests that said machine or program is
being forced to run far outside of design specifications.
—Eric Raymond, The Jargon File (1997)