“Henon Strange,” by Brian Meloon.

University of Minnesota
Geometry Center
Henon Strange, by Brian Meloon. Copyright © the University of Minnesota Geometry Center. The Henon map is the twodimensional analogue of the logistic equation
H(x,y)=(x²–a*y+c,x),
where a and c are constants. The picture shows a portion of the locus of points where the rate of escape of a point under iteration is the same going forwards and backwards (using the inverse map).
http://www.geom.umn.edu
