Tool

Hénon explorer

Drag a and b to scan the Hénon family. Classical (1.4, 0.3) sits in the strange-attractor region; lower a and you hit periodic windows.

a: 1.400

b: 0.300

Iterations: 80,000

Rule

x_{n+1} = 1 − a · x_n² + y_n
y_{n+1} = b · x_n

Classical Hénon attractor at (a, b) = (1.4, 0.3) has Hausdorff dimension ≈ 1.261 and λ₁ ≈ 0.42.

Background at /maps/henon.

FAQ