Four-Scroll Hyperchaotic Attractor in a Five-Dimensional Memristive Wien Bridge Oscillator: Analysis and Digital Electronic Implementation

Figure 9

Basin of attraction plotted in the plane (x₁(0), x₅(0)) showing the initial conditions that lead to each coexisting steady state: the orange area is for positive chaotic attractor while the blue area is for negative ones. The black and red zones are for initial conditions that led to periodic attractors. System parameters are a = 0.05, b = 0.03, c = 6, d = 3, e = 2, f = 1,  = 1, k = 2, α = 1.3, δ = 1. The other initial conditions are X₂(0) = 1, X₃(0) = 1, X₄(0) = 1 (color version online).