Re: [ff3d-users] Newbie question

[Luigi Bardelli]

Hi Stephane,
   thank you, now it works! I have another question (maybe related):
writing something  like:

double A=0.123456789; // constant for
solve(var) in MESH
{
  pde(var)
    //    dx(dx(var))=0;    //  ok
    //    A*dx(dx(var))=0;  // not ok
    //    -dx(dx(var))=0;   //  ok
    //    dx(dx(var))*A=0;  // not ok
    //    dx(dx(A*var))=0;  // not ok
    //    -dx(dx(A*var))=0; // not ok
    //    -dx(A*dx(var))=0; //  ok !
    //    dx(A*dx(var))=0;  //  ok !
}

sometimes gives errors like:
line 103:syntax error, unexpected "unkown variable": "var" unexpected

If A is a pde unknown the error changes in
line 103:syntax error, unexpected '*', expecting '=' or '-' or '+': "*"
unexpected

Is it normal?

Another (minor) remark: in docs/Makefile.am the line
        dvips `basename $< .tex`.dvi
should be changed in something like
        dvips `basename $< .tex`.dvi -o  `basename $< .tex`.ps
otherwise the manual will be printed on the default printer every time you
compile the lib (I have already two copies...)

Thank you!
    Luigi



On Tue, 20 Jul 2004, Stephane Del Pino wrote:
> Ok, the bug is fixed. It just comes from the fact that we usually solve
>       -(dx(dx(V))+dy(dy(V))+dz(dz(V)))=0;
> and not   dx(dx(V))+dy(dy(V))+dz(dz(V))=0;
> so I did forget to test it and implement it...
>
> Note also that the scene is useless here since you are using standard FEM and
> not fictitious domain.
>
> Best regards and thanks for the report,
> Stephane.