  This work is an introduction to modern mathematical physics. We begin with
Maxwell laws and vector calculus, pass next to consider the action and the
Feynman integral in quantum mechanics, next relativity and differential
geometry to formulate the electromagnetic laws in intrinsic form. Next we see
gravitation to study the covariant derivative. We end with the electromagnetic
bundle U(1). It contains the know-how + the know-why. The text is written in
Spanish. 340 pps.
