nSimple as possible with
non-linear terms left in.
Lorenz – US mathematician, weather forecaster for US Army Air corps during
WWII. Made mathematical models of weather systems, noticed ‘unpredicatable
set of equations for convection to explain weather pattern. He made the
equations as simple as possible, but left in non-linear terms.
non-linear systems that show apparently random motion show a strange form of
order when plotted in a suitable phase space - the motion never repeats
itself, but is confined to a fixed region of space - a strange