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Re: cusp fold surface
I have a notebook on the unfolding of the pitch fork bifurcation that you can download from http://www.higgins.ucdavis.edu/UCDMath/NLDApplications.php The notebook is called imperfect bifurcation The notebook shows how to plot the 3 dimensional surface (the catastrophe surface) that displays the unfolding of the bifurcation point. Cheers, Brian dwarnold45 at cox.net wrote: > All, > > Has anyone done a bifurcation analysis of dx/dt=h+rx-x^3, where h and r > are parameters? > > I am looking for some mathematica code that will darw cusp catastrophe > surface above bifurcation curves in the (r,h) plane. > > Thanks.