Lagrange brackets are certain expressions closely related to Poisson brackets that were introduced by Joseph Louis Lagrange from 1808 to 1810 for the purposes of mathematical formulation of classical mechanics, but unlike the Poisson brackets, have fallen out of use. == Definition == Suppose that (q1, ..., qn, p1, ..., pn) is a system of canonical coordinates on a phase space.
Lagrange brackets are certain expressions closely related to Poisson brackets that were introduced by Joseph Louis Lagrange from 1808 to 1810 for the purposes of mathematical formulation of classical mechanics, but unlike the Poisson brackets, have fallen out of use. == Definition == Suppose that (q1, ..., qn, p1, ..., pn) is a system of canonical coordinates on a phase space.
Source: Wikipedia "Lagrange bracket" · CC BY-SA 4.0
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