32:45

12.3: Heat Equation

41:37

12.4: Wave Equation

29:56

12.1: Separable Partial Differential Equations

24:29

12.6: Nonhomogeneous Boundary Value Problems, Day 1

38:59

12.6: Nonhomogeneous Boundary Value Problems, Day 2

49:54

PDE 101: Separation of Variables! ...or how I learned to stop worrying and solve Laplace's equation