[ff3d-users] Question to Docu

[Markus Feldmann]

Hi All,

i have got a Question to your Docu.
I do not understand the Excercise on Page 11 in your Docu
http://www.freefem.org/ff3d/docs/freefem3dDoc.pdf
?

What is the Problem in this Excercise ?
What means "on" and "in" ?

regards markus

[Stephane Del Pino]

Hello.

Le Monday 14 April 2008, Markus Feldmann a écrit :
> Hi All,
>
> i have got a Question to your Docu.
> I do not understand the Excercise on Page 11 in your Docu
> http://www.freefem.org/ff3d/docs/freefem3dDoc.pdf
> ?
> What is the Problem in this Excercise ?
In fact there is no exercice their. It is just some kind of model
(non-physical) problem that can be solved by ff3d.

> What means "on" and "in" ?
- "on" says that
u=x*(x-1)+y*(y-1)+z*(z-1)
and v=sin(pi*x)*sin(pi*y)*sin(pi*z)
are verified by u and v "on" the boundary "dO" of the domain "O"
- "in" says that
-Laplacian(u)+v=f
and v-Laplacian(v)+u=g
are verified inside the domain "O" (almost everywhere in "O")

Does this answer your question?

Best regards,
Stéphane.

[Markus Feldmann]

Thank you for the fast Response,

I still have got some Questions to this
Example/Excercise, but i will first read my
Math Book to understand more of this and maybe
i will get some Answers by myself. :-)

I develop a EM Simulator for the Qucs Project(GPL).
So we are in need of a GPL EM Library or develop
a EM Engine by ourself.

Regards Markus