3.3 Fourier analysis
3.3.1 Fourier series
3.3.2 Complex exponentials
* Fourier decomposition of the "square wave" and the "triangular wave"
3.3.3 Fourier integrals
3.3.4 Diffusion
* Wave equatiion for a tense string:
3.3.5 Wave packet
Recap
(Combined notes for lecture 11)
Exercises: