Talk:Action-angle coordinates

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Proper definition of the action-angle variables[edit]

I believe that the author of the article confused the notation when talking about the action-angle variables. In particular, the variable is generally called the angle and is the action. I would like to correct this if there are no objections. Also, one should probably indicate that the derivation holds only for separable in proper separated coordinates . PtolRek (talk) 20:44, 15 October 2010 (UTC)

In accordance with Goldstein's nomenclature, I think you are using the right vocabularies. Please make the necessary correction. Thanks!LaoChen (talk) 05:27, 17 October 2010 (UTC)