assigned today:

Due today:

Due today:

- standard-2D wave equation:
I can calculate and shape and frequencies of a circular drum head.

- 12.10.13 through 12.10.15 (all of them)
- Calculate the relative amounts of the first 10 frequencies for a circular drum with radius 1 excited by the function \(f(r)=e^{-r^2/0.2^2}\)
- Calculate 5 different frequencies for a circular drum, at least one of which has an eigenfunction that is a function of \(\theta\)

- Talked about the final and due dates (everything due noon 12/20)
- build up an analogy between:
- drum head waves
- rectangular plate heat steady state

- Talked about \(J_0(r)\) versus \(J_0(kr)\)
- had them draw their favorite function ?(x), ?(2x), and ?(1/2 x) to figure out how to move the zeros onto the edge of the drum head

- quiz on 5 frequencies of a drum