Fractional-Order Hidden Attractor Based on the Extended Liu System

Figure 9

Phase plane plot of system (4) with a = 10, b = 40, c = 2.5, k = 1, h = 4,  = 5, d = 20, and m = 15: (a) with the fractional-order q = 0.95, (b) with the fractional-order q = 0.97, and (c) with the fractional-order q = 0.98.

(a)

(b)

(c)

(d)

(e)

(f)