
(a) Bifurcation diagram with the change of , when 


(b) Bifurcation diagram with the change of with the rest fixed parameters 


(c) Bifurcation diagram with the change of with the rest fixed parameters 


(d) Bifurcation diagram with the change of with the rest fixed parameters 


(e) Bifurcation diagram with the change of with the rest fixed parameters 


(f) Lyapunov exponent with the change of , when 

Figure 7: Bifurcation diagram and the Lyapunov exponent when , , , and and the step length is 0.001. 
