Depending on the values for the parameters and , there are one or three real roots for the above cubic equation. The stability of the steady states is given by the sign of the function: . This Demonstration gives the bifurcation diagram (- plot) and the loci of the steady states. The stable steady states are indicated with blue dots while the unstable steady state is show with a red dot for user-set values of and . The blue region shown in the bifurcation diagram bounds the loci of unstable steady states for all values of , . The - diagram features two regions: in the red region there are three steady states; in the green region there is only one steady state. The blue curve in the same plot gives the loci for two distinct steady states (note that one of the steady states has multiplicity two). Finally, the Demonstration plots the amplitude trajectories for two different initial conditions, and , which lead to the two stable steady states when and are selected appropriately.