- #1
Grand
- 76
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Homework Statement
I am trying to prove that Lagrangian L is not uniquely defined, but only up to a time derivative of a function:
[tex]\frac{d\Lambda}{dt}, \Lambda(\vec{q}, t)[/tex]
So
[tex] L > L+\frac{d\Lambda}{dt} = L+\frac{\partial \Lambda}{\partial q}~\dot{q}+\frac{\partial \Lambda}{\partial t}[/tex]
But when I put it in the E-L eqns they definitely aren't as before.
Where have I gone wrong?