Re: [Getfem-users] nonlinear brick

[Yves Renard]

Dear Roman,

It is a quite interesting goal, of course. The mechanism of bricks is a 
low-level mechanism for building coupled systems from potentially different 
methods of approximation. One of my goals is also  to achieve some enhanced 
bricks more intuitive and closer to the weak formulation.

Regards,

Yves.

On vendredi 26 mars 2010, Roman Putanowicz wrote:
> Dear Yves,
>
> > Your term
> >  double a = vecl[0][0];
> > cannot be correct. vecl is to be filled by  asm_real_tangent_terms. It is
> > initialized with 0.
>
> Thank you a lot.
> This is the point I was looking for. With your remark I was able to
> write  a code which solves the equation a*x^2+b*x+c = 0.
> When I clean it a bit I will post it to the list.
>
> Writing such program may seem strange at first, but for me such program
> gives the opportunity to play with some of GetFEM++ concepts without the
> whole baggage of FEM. What is really appealing to me is explicit or
> almost explicit representation of mathematical model in GetFEM.
>
> This "explicitness" manifests itself  for instance in the possibility
> to enhance bricks and the model classes so they could generate a LaTeX
> math expressions for the variational form.
>
> Regards,
>
> Roman
>
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-- 

  Yves Renard (address@hidden)       tel : (33) 04.72.43.87.08
  Pole de Mathematiques, INSA-Lyon             fax : (33) 04.72.43.85.29
  20, rue Albert Einstein
  69621 Villeurbanne Cedex, FRANCE
  http://math.univ-lyon1.fr/~renard

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