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when toggle format what by license comment
Apr 6, 2020 at 11:03 history edited Francois Ziegler CC BY-SA 4.0
clarify
Apr 6, 2020 at 4:17 history edited Francois Ziegler CC BY-SA 4.0
Fix sign error
Apr 5, 2020 at 22:09 history edited Francois Ziegler CC BY-SA 4.0
added 938 characters in body
Apr 5, 2020 at 14:47 history edited Francois Ziegler CC BY-SA 4.0
added 241 characters in body
Apr 5, 2020 at 13:44 history edited Francois Ziegler CC BY-SA 4.0
deleted 6 characters in body
Apr 5, 2020 at 13:42 comment added Michael Engelhardt Indeed, there is nothing particularly fundamental about the combination (kinetic-potential) energy. This is what the Lagrangean happens to be if the kinetic energy happens to be quadratic in $p$. In general, e.g., for a relativistic particle, the Lagrangean doesn't have the (kinetic-potential) energy form.
Apr 5, 2020 at 13:42 history edited Francois Ziegler CC BY-SA 4.0
Avoid notational collision
Apr 5, 2020 at 13:34 history answered Francois Ziegler CC BY-SA 4.0