15:51

Thm 5.21

16:01

Theorem 6.5

7:04

lemma

18:32

Eigenvalues and Eigenvectors

7:26

Theorem 5.20

6:41

Finding Eigenvectors

13:32

Theorem 5.16

24:47

But what is a Fourier series? From heat flow to drawing with circles | DE4