On Fri, Jan 17, 2014 at 4:09 PM, Geoffrey Irving <[email protected]> wrote:
> Do the test functions we integrate against to form residuals with > PetscFE come from the primal space or the dual space? I.e., is > PetscFE always Galerkin? If it isn't always Galerkin, when would it > be? > They come from the dual space. I do not think I have made any assumptions that prevent Petrov-Galerkin, but I have also never tried an example. You can see the code that does tabulation here: https://bitbucket.org/petsc/petsc/src/cdce425498f34eac2bb744f37c9fe1bd5a97b9d8/src/dm/dt/interface/dtfe.c?at=master#cl-2317 Matt > Thanks, > Geoffrey > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener
