An extreme enlargement of a portion of the Bifurcation Diagram
of the famous Hénon map
(x1, x2) -> (a - x12 + b x2,
x1).
The parameter a, plotted on the X-Axis, is varied from 1.147020 to 1.147062,
while the parameter b is fixed at 0.3.
The x1 coordinate is plotted on the Y-Axis in the range
from -0.089 to -0.082.
Notice the coexistence of period-doubling and period-halving bifurcations.