In the case of classical mechanics, the Lagrangian approach leads to **exactly**... | Hacker News

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		onedognight on May 17, 2015 \| parent \| context \| favorite \| on: Structure and Interpretation of Classical Mechanic... In the case of classical mechanics, the Lagrangian approach leads to exactly the same equations. The reason to learn it is that the Lagrangian approach generalizes and is used in nearly all physics[1]. [1] https://en.wikipedia.org/wiki/Lagrangian#Selected_fields

santaclaus on May 17, 2015 [–]

Calculus of variations is also pretty much a requirement if you want to dive into geometry.

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