]> https://gitweb.dealii.org/ - dealii-svn.git/commitdiff
Clean-up
authorwolf <wolf@0785d39b-7218-0410-832d-ea1e28bc413d>
Thu, 1 Apr 1999 09:01:09 +0000 (09:01 +0000)
committerwolf <wolf@0785d39b-7218-0410-832d-ea1e28bc413d>
Thu, 1 Apr 1999 09:01:09 +0000 (09:01 +0000)
git-svn-id: https://svn.dealii.org/trunk@1070 0785d39b-7218-0410-832d-ea1e28bc413d

deal.II/deal.II/include/numerics/vectors.h

index 37582b53b2a70d79bc91c4bdd192716b05bf613e..64358329b12c79eb58245f223644cf0b8c4ff59d 100644 (file)
@@ -313,12 +313,28 @@ class VectorTools //<dim>
                                      * boundary first, but that you must if you
                                      * want to do so.
                                      *
+                                     * This function needs the mass matrix
+                                     * of the finite element space on the
+                                     * present grid. To this end, the mass
+                                     * matrix is assembled exactly using the
+                                     * #create_mass_matrix# function in the
+                                     * #MatrixTools# collection. This function
+                                     * uses the #get_local_mass_matrix#
+                                     * function of the finite element; however,
+                                     * this function is not supported by all
+                                     * finite elements, in which case we
+                                     * resort to numerical quadrature using the
+                                     * given quadrature rule; you should
+                                     * therefore make sure that the given
+                                     * quadrature formula is also sufficient
+                                     * for the integration of the mass matrix.
+                                     *
                                      * See the general documentation of this
                                      * class for further information.
                                      */
     static void project (const DoFHandler<dim>    &dof,
                         const ConstraintMatrix   &constraints,
-                        const Quadrature<dim>    &q,
+                        const Quadrature<dim>    &quadrature,
                         const Function<dim>      &function,
                         Vector<double>           &vec,
                         const bool                enforce_zero_boundary = false,

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