(a) A string of length L is fixed at one end (in other words,
y(0) = 0) and free at the other end (y 0 (L) = 0). Consider the
position-dependent wave equation for the string. What are f, g, w,
α1, β1, α2 and β2 of this Sturm-Liouville system? Find the
eigenvalues and eigenvectors of this system. How may these be
useful for solving problems? (Aside: this is known as the
one-dimensional Helmholtz equation.)
(b) Consider a string that...