Improve a formula.

git-svn-id: https://svn.dealii.org/trunk@25555 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/include/deal.II/dofs/dof_tools.h b/deal.II/include/deal.II/dofs/dof_tools.h
index 00728695da2b4e269fa56da9226584815505f115..2d33d4ad62b59db2173832bc19f2e860543a6a40 100644 (file)
--- a/deal.II/include/deal.II/dofs/dof_tools.h
+++ b/deal.II/include/deal.II/dofs/dof_tools.h
@@ -524,11 +524,13 @@ namespace DoFTools
                                     * following pattern of
                                     * couplings:
                                     * @f[
+                                    * \left[
                                     * \begin{array}{ccc}
                                     *   1 & 0 & 1 \\
                                     *   0 & 1 & 1 \\
                                     *   1 & 1 & 0
                                     * \end{array}
+                                    * \right]
                                     * @f]
                                     * where "1" indicates that two
                                     * variables (i.e. components of