Fig. 6
From: A novel 4D chaotic system coupling with dual-memristors and application in image encryption

When the parameters are set as a = 1.8, b = 0.8, c = 1, m1 = m2 = 0.8, and initial condition IC = (0.1, 0.1, 0.1, 0), the phase trajectory diagram of the new 4-dimensional chaotic system in each plane is obtained. (a) x–y. (b) x–z. (c) x–w; (d) y–w. (e) y–z. (f) z–w.