- Phys 333 - Griffiths (text that utilizes extensiviely differentials).
- Conical coordinates? What are these?
- Br. Hat - Rather than computing the ration dy/dx and then taking limits, we instead first write dy = stuff dx and then take limits. I should pick his brain here, and see if I can get him to express this more. It might be example what I want.
- Lagrangian and Hamiltonian. What is the Hamiltonian? Sum of kinetic energies?
