[Tochnog-users] acoustics in 1D

[osman <os...@fu...>]

Hello,
I am attaching a simple 1D acoustics example. The eigenvectors make
sense but I don't know how to get the frequencies from eigenvalues. I
thought they should have been omega^2. Taking sqrt, and divide by 2pi
should have given me the frequencies but... They even change with
increase in mesh density ! 
Anyways, here it is:

Osman