Homework for Thursday, Oct. 11th:
1.2: #3, #4, #6, #8, #11
Hint for #8:
Use a change of coordinates. You'll need to remember (or look up)
how to solve the ODE df/dx + c f = 0 (or df/dx+cf = a function of x)
1.4: #1
1.5: #1, #2**
[Optional (not to be turned in): If you're into physics, you might want to look at
section 1.3: #1, #3, #4; section 1.4: #3]
Homework for Thursday, Oct. 18th:
2.3: #1, #5, #6, #8
2.4: #7, #11(a)
Homework for Thursday, Oct. 25th:
2.4: #2, #3, #4, #8, #9, #16
(Hint for #8: First, for each fixed t, find a formula for the
maximum of S(x,t) on the interval delta <= x < infinity.
Then, take the limit as t goes to 0.)
Homework for Thursday, Nov. 1st.
Homework for Tuesday, Nov. 20th:
2.1: #1, #5, #7, #9
2.2: #3(c), #5
2.5: #2(a) HINT
   Hint for 2.1, #7: Using d'Alembert's formula, what is
u(-x,t)?
   Hint for 2.1, #9: Make the change of coordinates
xi=x-t; eta=4x+t and find the general solution.
Last homework -- due on Tuesday, Dec. 4st.