Homework Help: Graphing Triangular Wave

1. Sep 7, 2010

Quincy

1. The problem statement, all variables and given/known data

A triangular wave pulse on a taut string travels in the positive x-direction with speed v. The tension in the string is F, and the linear mass density of the string is u. At t = 0, the shape of the pulse is given by:

y(x,0) = 0 if x < -L
h(L + x)/L for -L < x < 0
h(L - x)/L for 0 < x < L
0 for x > L

3. The attempt at a solution

I don't really know where to start, I'm having problems interpreting the question; what does L represent? What is the h function?

2. Sep 7, 2010

Quincy

Bump; anyone?

3. Sep 7, 2010

ehild

Plot the function. You will see what L is.

What is the question in the problem?

ehild

4. Sep 8, 2010

Quincy

how can i plot the function if i don't know what L is?

5. Sep 8, 2010

ehild

Choose the scaling of x to be L and h of y.

ehild

File size:
15.7 KB
Views:
225
6. Sep 8, 2010

Quincy

Thanks;

Also, why is it that the power during the interval [-1,1] is constant?

7. Sep 8, 2010

ehild

What power? And why [-1,1]? Copy the whole problem, please. What is the question?