APM346--2020S > Test 1

past test 2019 day problem 3B

(1/1)

**Yan Zhou**:

I think there are some typo in the answer of u(x,t).

$$u(x,t) = 6sin(x+3t) + 6sin(x-3t) $$ as $x>3t$,

$$u(x,t) = 6sin(x+3t) + 6sin(2(x-3t))$$ as $t<x<3t$.

Navigation

[0] Message Index

Go to full version