What is the added value of the lagrangian?
91314
Advantages of Lagrangian Mechanics over Newtonian Mechanics
28946
Derivation of Spin Lagrangian
157191
Conjugate Variables, Noether's Theorem and QM
126390
Covariance of Euler-Lagrange equations under change of generalized coordinates
72361
What is the connection between regularization and the method of lagrange multipliers ?
84036
When do relativistic effects need to be explicitly included?
42778
Why is the contribution of a path in Feynmans path integral formalism $\sim e^{(i/\hbar)S[x(t)]}$?
70183
Angular Momentum Addition Theorem - Sanity Check
82166
How are constraint forces represented in Lagrangian mechanics?
23518
How are the Lagrange points determined?
101002
Is there either a Lagrangian or a Hamiltonian formulation of electromagnetism with continuous distributions of magnetic monopoles?
46053
How to find Hamiltonian from this simple Lagrangian? (tricky)
83580
What's the point of Hamiltonian mechanics?
72721
Do an action and its Euler-Lagrange equations have the same symmetries?
142892
Lagrangian Mechanics - Commutativity Rule $\frac{d}{dt}\delta q=\delta \frac{dq}{dt} $
38299
Why do Lagrange Multipliers work?
27016
Is the Lagrangian density a functional or a function?