Motion of a particle in a conservattive force field

The Euler-Lagrange equation
WIP
Newton’s problem of mimimal resistance

Constrained variational principles

Elastic rods

Buckling and bifurcation theory

Laplace’s equation

The Euler-Lagrange equation(part 2)
WIP
The wave equation
WIP
Hamiltonian mechanics
WIP
Poisson brackets
WIP
Rigid body rotations
WIP
Hamiltonian PDEs
WIP
Path integrals
WIP
The principle of stationary action

The variational derivative

Derivation of Newton’s resistance functional

Resistances of some simple shapes

The variational problem

The Euler-Lagrange equation(part1, 2)

Eigenvalue problems

Kinematics

Equivalence with Newton’s second law

Examples from mechanics
