Can we do the same for PDEs? Is it ever useful?
Back to waggling the semi-infinite string ⎩ ⎨ ⎧ ≤ ≤ = otherwise if 0 sin 0 2 (0, ) t t π w t *Kreysig, 8th Edn, page 644 Find the displacement w(x,t) of an elastic string subject to the following conditions: 1. The semi-infinite string is initially at rest, on the x-axis 2.