Toby, **there was some disscusion around this topic (C1-element) in deal ii maling list years ago, i can not find them as online (maybe archive is incomplete), however i find in my mail box, if you like i can forward them to you.
within them is response of Roy Stogner that worked around topic however his implementation is integrated to "libmesh" code (he has some papers, one in IJMNE describe his method: http://doi.wiley.com/10.1002/nme.1912) Cheers RT On Wed, Apr 15, 2009 at 5:24 AM, Toby D. Young <[email protected]> wrote: > > > Hello, > > I am trying to teach myself something about the mechanism deal.ii uses > to compute his interpolation polynomials for the fem. My reasons are > two-fold: (i) I would like to understand what I am doing :-) ; and > (ii) I would like to implement hermite polynomials in the near future. > > I have had a look at the base and fe classes (directed by the FAQ and > using the documentation), but I have got lost as to where exactly the > coefficients of the polynomials are computed. (There must be a page in > the documentation I have missed). > > My best guess is to start from here > http://dealii.org/developer/doxygen/deal.II/classFE__Q.html > http://dealii.org/developer/doxygen/deal.II/group__fe.html > and implement "FE_Hermite <dim>" > Am I on the right track here? > > A slightly unrelated question for the fe masters: I am right in > thinking the Jacobian times weight matrix $JxW$ is unitary? > $JxW.(JxW)^T=1$; he's a coordinate transformation, right? > > Thanks for your time, I look forward to some hints. > > Best, > Toby > > -- > > Toby D. Young > Philosopher-Physicist > Adiunkt (Assistant Professor) > Polish Academy of Sciences > Warszawa, Polska > > www: http://www.ippt.gov.pl/~tyoung > skype: stenografia > _______________________________________________ > dealii mailing list http://poisson.dealii.org/mailman/listinfo/dealii >
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