refined

git-svn-id: https://svn.dealii.org/trunk@2532 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/deal.II/Todo b/deal.II/deal.II/Todo
index 00919dac748e3671e240624978983e84fb79a1e9..a22a4ddfeaa32670fae8ea2d0e67c45e55756b99 100644 (file)
--- a/deal.II/deal.II/Todo
+++ b/deal.II/deal.II/Todo
@@ -43,7 +43,11 @@ Check all places where condensation of matrices/vectors and
 
 
 No support points for non-Lagrangian elements? Check for Langrange in
-interpolation?
+  interpolation? Interpolation functions do not really make sense if
+  node values are momenta of the trial functions. For these cases,
+  something els must be devised. Still, to allow for upwind-ordering,
+  it would be good to assign a point to the functions, maybe a kind
+  of center of mass.
 
 
 Think about the problem pointed at in the documentation of