Hi Jochen,
why don't you try to integrate the difference against the
ZeroFunction<dim>? That means you have to have the "exact" and the
computed solution on the same mesh.
Best, Bärbel
--
Bärbel Janssen
Institut für Angewandte Mathematik
Universität Heidelberg
Im Neuenheimer Feld 293, Raum 213
Telefon: +49 6221 54-5449
On Tue, 22 Feb 2011, Jochen Abhau wrote:
Hello,
is there a library function to generate a Function<dim> object out of
sampled function values (plus some interpolation method)?
Background: I want to compare the finite element solution of some PDE to
another solution (obtained by different techniques). The other solution
is given by function values on points and shall be regarded as "exact"
solution. Now I want to use the integrate_difference method.
Thanks in advance.
Best regards.
Jochen
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