These lecture notes are based on Refs. arXiv:2110.15351, arXiv:2012.06586,
    and arXiv:1908.02927, which aim to give closed-form solutions to the spinning,
    eccentric binary black hole dynamics at 1.5PN via two different equivalent
    ways: (1) the standard way of integrating Hamilton’s equations and (2) using
    action-angle variables. The above papers assume a certain level of familiarity
    with the symplectic geometric approach to classical mechanics, the
    non-fulfillment of which on the reader’s part may make the papers appear
    esoteric. The purpose of these lecture notes is to give the reader this
    prerequisite knowledge which the above papers assume on the reader’s part.

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