= Hamiltonian mechanics
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= Hamiltonian
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Equivalent to <Lagrangian mechanics> but formulated in a different way.
Motivation: <Lagrangian vs Hamiltonian>.
TODO understand original historical motivation, https://www.youtube.com/watch?v=SZXHoWwBcDc says it is from <optics>.
Intuitively, the <Hamiltonian> is the total energy of the system in terms of arbitrary parameters, a bit like <Lagrangian mechanics>.
Bibliography:
* http://www.damtp.cam.ac.uk/user/tong/dynamics/four.pdf
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