... EXAMPLE 6.1 Using totin the 3D Euler-Lagrangeequations, Equation (6.49) on page 79(with η replaced by Aν), we can derive the dynamics for the whole system. Forinstance, the electromagnetic ... 142Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147F Formulae 149F.1 The Electromagnetic Field . . . . . . . . . . . . . . . . . . . 149F.1.1 Maxwell’s equations . . . . . . . ... reason to return to electro-dynamics, both in my studies, research and teaching, and the current bookis the result of my own teaching of a course in advanced electrodynamics atUppsala University...