hi i am a MS physics student. We are following the goldstein book for classical mech and have exams next week. Does anyone know of any good (easy - "how to do it" procedure explained) notes or pdf hand outs on the Hamilton Jacobi eq and the action angle variables. I do not have time to study too deeply - I only want to get the hang of it and know how to do the sums. If you know any such problem solving oriented notes pls post the links here or in my inbox. Alternatively you can write a coupel of lines here yourself explaining how to go about the sums - EG - for lagrangian - 1 - find the degrees of freedoms - 2 - for each one choose a generalized coordinate/variable. 3 - find out the PE and the KE 4 - The Lagrangian then is L = KE -PE 5 - solve the EL eq for each generalized coordinate. Something very simplistic like this - Thanks a lot.