From 0f11f315285ef4ed6f0b9efa7e2b2e6be3004883 Mon Sep 17 00:00:00 2001 From: kanschat Date: Thu, 3 May 2007 22:24:47 +0000 Subject: [PATCH] add more detailed documentation about this special condense function git-svn-id: https://svn.dealii.org/trunk@14665 0785d39b-7218-0410-832d-ea1e28bc413d --- deal.II/deal.II/include/dofs/dof_constraints.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/deal.II/deal.II/include/dofs/dof_constraints.h b/deal.II/deal.II/include/dofs/dof_constraints.h index cdcfe0c01c..6243f635a6 100644 --- a/deal.II/deal.II/include/dofs/dof_constraints.h +++ b/deal.II/deal.II/include/dofs/dof_constraints.h @@ -499,6 +499,17 @@ class ConstraintMatrix : public Subscriptor * The constraint matrix object * must be closed to call this * function. + * + * @note The hanging nodes are + * completely eliminated from the + * linear system refering to + * condensed. Therefore, + * the dimension of + * condensed is the + * dimension of + * uncondensed minus the + * number of constraint degrees + * of freedom. */ void condense (const SparsityPattern &uncondensed, SparsityPattern &condensed) const; -- 2.39.5