MathGroup Archive 2007

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Phase Portrait

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  • Subject: [mg76209] Phase Portrait
  • From: herato <herato at>
  • Date: Thu, 17 May 2007 06:58:40 -0400 (EDT)

I would like to plot a simple phase portrait of some standard equation
such as the pendulum .

How to do it?

It is completely equivalent to plot sublevels of the Hamiltonian, but
in this case Mathematica does not plot the separatrix.....

Thanks a lot!!!!

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