Sir William Rowan Hamilton |

Considering the number of things I did not know it was a good idea to postpone reading this section until now.

The section describes how we use Hamilton's least action principle and the Lagrangian which becomes the Lagrange density to get field equations.

It then has examples of how to use the procedure to get

- a scalar field theory,
- a field theory for a harmonic oscillator which might be related to the relativistic equation of motion of an electron and
- an Electro Magnetic field theory which (with some assumptions) gives Maxwell's equations.

Read about my chapter 1 "Endkampf" here: Commentary 1.10 Classical Field Theory.pdf (9 pages)

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