Hi guys,
So textbooks have it that: "Two Lagrangians differing by a total time-derivative of a function of the coordinates are equivalent". I have no idea what that means or how to use it; so I dont know which terms I can drop from Lagrangians, which is a bit of a problem.
For example,...
How to drop terms in a Lagrangian?
How to drop terms in a Lagrangian?
So textbooks have it that: "Two Lagrangians differing by a total time-derivative of a function of the coordinates are equivalent". I have no idea what that means or how to use it; so I dont know which terms I can drop from Lagrangians, which is a bit of a problem.
For example,...
How to drop terms in a Lagrangian?
How to drop terms in a Lagrangian?
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