Duffing Chaos Map

ẍ − x + x³ = γcos(ωt) — strange attractor and Poincaré section

Attractor
Poincaré
Bifurcation

Duffing Parameters

γ =
Points plotted:
Mode: attractor
ẍ = x − x³ − δẋ + γcos(ωt)
Double-well potential V = −x²/2 + x⁴/4

Attractor: phase space trajectory
Poincaré: sample at t = 2πn/ω
Bifurcation: x* vs γ

Chaos onset: γ ≈ 0.28
Strange attractor for γ ≈ 0.37