Hamilton's equations for double pendulum

  1. At the bottom of the following web site are the 4 equations that I am using for a double pendulum simulation.


    The equation for C2 has the variables P1 and P2 and I can't work out what they are.:confused:

    Is it a typo and they are meant to be Pθ1 and Pθ2?

    Any help would be much appreciated.
  2. jcsd
  3. DrClaude

    Staff: Mentor

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