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Action-Angle Variables ?

  1. Jul 3, 2009 #1

    referframe

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    Gold Member

    I'm looking for one clear, simple mathematical definition of action-angle variables. I believe they are also called action-angle coordinates. As always, thanks in advance.
     
  2. jcsd
  3. Jul 4, 2009 #2

    atyy

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    Science Advisor

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