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cusp fold surface

• To: mathgroup at smc.vnet.net
• Subject: [mg69802] cusp fold surface
• From: dwarnold45 at cox.net
• Date: Sat, 23 Sep 2006 04:45:07 -0400 (EDT)

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.