Are there other formalisms apart from Newtonian, Lagrangian and Hamiltonian?
109884
Are there other less famous yet accepted formalisms of Classical Mechanics?
105398
Physical intuition for higher order derivatives
34788
Lagrangian for relativistic massless point particle
153656
What Lagrangian counterterms might be needed in a $\phi^ 6$ theory in 3D?
30992
How do you determine the Lagrangian?
72721
Do an action and its Euler-Lagrange equations have the same symmetries?
126142
Action principle, Lagrangian mechanics, Hamiltonian mechanics, and conservation laws when assuming Aristotelian mechanics $F=mv$
134314
Good reading on the Keldysh formalism
4421
Proof that total derivative is the only function that can be added to Lagrangian without changing the EOM
82166
How are constraint forces represented in Lagrangian mechanics?
84684
Force equations for a particle in a non-inertial frame of reference
43127
Why are Hamiltonian Mechanics well-defined?
44282
How do I show that there exists variational/action principle for a given classical system?
139212
Can the double pendulum equations not be derived solely using Newtonian Mechanics (Newton's Laws of Motion)?
143768
How to explain the different forms of the Hamilton-Jacobi equation?
158511
"Non-linear" algebra
146853
Do we need inertial frames in Lagrangian mechanics?