单词 | Poisson bracket |
释义 | Poisson bracket [pwä`sōn ´brak·ǝt] MECHANICS For any two dynamical variables, X and Y, the sum, over all degrees of freedom of the system, of (∂X /∂q )(∂Y /∂p )-(∂X /∂p )(∂Y /∂q ), where q is a generalized coordinate and p is the corresponding generalized momentum. |
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