Documentation update

git-svn-id: https://svn.dealii.org/trunk@3141 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/lac/include/lac/solver_qmrs.h b/deal.II/lac/include/lac/solver_qmrs.h
index 2a8d273aeaec319fb8089cc9b754ebe6d16c2f43..ae929e11b0a60de86e89aae5fd411a354d474fa2 100644 (file)
--- a/deal.II/lac/include/lac/solver_qmrs.h
+++ b/deal.II/lac/include/lac/solver_qmrs.h
@@ -55,8 +55,7 @@ class SolverQMRS : private Solver<VECTOR>
                                     /**
                                      * Standardized data struct to
                                      * pipe additional data to the
-                                     * solver. This solver does not
-                                     * need additional data.
+                                     * solver.
                                      *
                                      * There are two possibilities to compute
                                      * the residual: one is an estimate using
@@ -64,9 +63,14 @@ class SolverQMRS : private Solver<VECTOR>
                                      * is exact computation using another matrix
                                      * vector multiplication.
                                      *
-                                     * QMRS, is susceptible to breakdowns, so
-                                     * we need a parameter telling us, which
-                                     * numbers are considered zero.
+                                     * QMRS, is susceptible to
+                                     * breakdowns, so we need a
+                                     * parameter telling us, which
+                                     * numbers are considered
+                                     * zero. The proper breakdown
+                                     * criterion is very unclear, so
+                                     * experiments may be necessary
+                                     * here.
                                      */
     struct AdditionalData
     {
@@ -161,7 +165,7 @@ class SolverQMRS : private Solver<VECTOR>
                                      */
     double res2;
                                     /**
-                                     * Breakdown threshold.
+                                     * Additional parameters..
                                      */
     AdditionalData additional_data;
   private: