Hey,

Could someone run through a step by step procedure on how to solve a partial differentiation wave equation?

I'm currently trying to figure out this problem:

Consider an elastic string of length L whose ends are held fixed. The string is set in motion with no inital velocity from an initial position u(x,0) = f(x).

Find the displacement u(x,t) for the given initial position f(x).

f(x) = 2x/L 0 <= x <= L/2

2(L-x) / L L/2 < x < L

Thanks