Chua Circuit — Double Scroll Attractor

First experimental chaos circuit — Chua (1983)

α (C₁/C₂)15.60

β (1/LC₂)28.0

m₀ (inner slope)-0.143

m₁ (outer slope)-1.140

Trail length2000

x: —

y: —

z: —

Scroll: —

Lyapunov: ~0.18

Chua equations: ẋ=α(y−x−f(x)), ẏ=x−y+z, ż=−βy. Piecewise-linear f(x)=m₁x+½(m₀−m₁)(|x+1|−|x−1|). Double scroll: Lorenz-like but from simple electronics.