[ff3d-users] Building matrices with ff3d

[thomas\.gazzola]

Hello to everyone !

I have a few questions about ff3d :

1) Is it possible to make unregular structured meshes directly
with ff3d ? Or shall I import a mesh build with an other program ?

2) Are P2 elements available, or only P1, as I read on a
previous mail ?

And the main question :
3) With FreeFEM++, I could build matrices resulting from
variational forms, by typing this (for example) :

// Bilinear variational form a
varf  a(u1,u2)= int2d(Th)( dx(u1)*dx(u2) + dy(u1)*dy(u2) ) ;
// matrix A created from the variational form a, on the FE
space Vh
matrix A = a(Vh,Vh);

Then I can make my own loops, for non-linear problems (in my
case, an optimization problem).
So the question is (of course :o)), is it still possible with
ff3d ?

Thank you for your answers,

Thomas Gazzola


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