Hi,
Le lundi 5 février 2007 02:49, Timothy Cox a écrit :
> Can I set up a P2 function using a formula like:
> femfunction f(M)=x^2;
If you do this you will interpolate the function x^2 on a P1 function space.
But, you can do it.
> if so how?
femfunction f(M:P2)=x^2;
will do what you want. Note that available keywords are P0, P1(default) and
P2. If the mesh M is a mesh of hexahedra, this will build a Q2 function.
You can also solve problems with this kind of element :
solve(u:P2) in ...
or compute integrals :
int[M:P2](...
there are examples in the exercises from Sevilla that you can download from
http://www.freefem.org/ff3d/index.html
Best regards,
Stéphane.
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