Next: The initial conditions. Up: The wave equation. Previous: The PDE.

The boundary conditions.

  The boundary conditions will be Dirichlet ones,  
 \begin{displaymath}
 u(0,t)= u(\ell,t) = 0.\end{displaymath} (11)
For the case of acoustics in a pipe, Neumann or mixed boundary conditions also often appear.


Next: The initial conditions. Up: The wave equation. Previous: The PDE.