ffc team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Fri, Jan 18, 2008 at 01:11:27PM +0000, Garth N. Wells wrote:
> 
> 
> Marie Rognes wrote:
> > FFC wrote:
> >> One or more new changesets pushed to the primary ffc repository.
> >> A short summary of the last three changesets is included below.
> >>
> >> changeset:   1052:21eebc65e6fa13c9c35c4d3d12bbafc76c71f963
> >> tag:         tip
> >> user:        "Kristian Oelgaard <k.b.oelgaard@xxxxxxxxxx>"
> >> date:        Thu Jan 17 11:37:24 2008 +0100
> >> files:       src/ffc/__init__.py src/ffc/compiler/analysis/checks.py src/ffc/compiler/codegeneration/common/finiteelement.py src/ffc/compiler/representation/quadrature/monomialtabulation.py src/ffc/compiler/representation/tensor/monomialintegration.py src/ffc/fem/quadratureelement.py src/ffc/fem/vectorelement.py
> >> description:
> >> QuadratureElement: It is now possible to create mixed elements from QuadratureElement, VectorQuadratureElement has aslo been added with a functionality similar to VectorElement. Works with both tensor and quadrature representation.
> >>
> >>   
> > 
> > What is a QuadratureElement?
> > 
> 
> It provides for functions which don't come from a finite element space, 
> but the values of which are known (or evaluated) at discrete points. A 
> typical example is the stress in a plasticity computation which is 
> computed at quadrature points.
> 
> Garth

Such functions can be used as coefficients in a form (when evaluated
using quadrature), but not differentiated.

-- 
Anders