Bifurcation diagram of the Henon map

Isoperiodic diagram of the Henon map on the (a,b) parameter plane is shown below. Algorithm of computations and coloring scheme are explained in "swallows" and "shrimps" comments. We see the familiar quadratic map dynamics along the b = 0 line (period doubling bifurcation cascade and chaotic sea ending at the "nose" tip).
Controls: Click mouse in the window to find period p of a point. Click mouse + <Alt>/<Ctrl> to zoom In/Out.
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updated 14 Nov 2006