[Getdp] Elasticty3D example

[Arkadiusz Wasylkow]

Dear group
	Recently I found gmsh project at freshmeat site. Seems to be very
interesting software.
First of all I'm trying to perform some acoustic compliance calculations
with it based on Elasticty3D example.
Because I'm not too good on advanced math I have 2 questions regarding this
example problem:
- What means factors c1 , c2 ,c3  and matrices produced with them ? I hope
it's somehow related to material properties like Young modulus and Poisson
ratio.
- How to produce stimulus (force, or pressure) changeable in time, for
example sine wave at certain frequency.

Thanks in advance.

Arkadiusz Wasylków