Minor textual changes.

git-svn-id: https://svn.dealii.org/trunk@15776 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/examples/step-31/step-31.cc b/deal.II/examples/step-31/step-31.cc
index 51823b2aed59417a685e06b413995b8b1808d315..af1c736f813f624d8708f6a86fd77d9ebdcdb7f5 100644 (file)
--- a/deal.II/examples/step-31/step-31.cc
+++ b/deal.II/examples/step-31/step-31.cc
@@ -15,7 +15,7 @@
                                 // @sect3{Include files}
                         
                                 // As usual, we start by including 
-                                // some well-known files. 
+                                // some well-known files:
 #include <base/quadrature_lib.h>
 #include <base/logstream.h>
 #include <base/function.h>
@@ -51,21 +51,21 @@
 #include <numerics/data_out.h>
 #include <numerics/error_estimator.h>
 
-                                // As in step-29, we include the libary for
-                                // the sparse direct solver UMFPACK.
+                                // Then we need to include the header file
+                                // for the sparse direct solver UMFPACK:
 #include <lac/sparse_direct.h>
 
                                 // This includes the libary for the 
                                 // incomplete LU factorization that will 
-                                // be used as a preconditioner in 3D.
+                                // be used as a preconditioner in 3D:
 #include <lac/sparse_ilu.h>
 
                                 // This is C++:
 #include <fstream>
 #include <sstream>
 
-                                // As in all programs, the namespace is set
-                                // to dealii.
+                                // As in all programs, the namespace dealii
+                                // in included:
 using namespace dealii;
 
                                 // @sect3{Defining the inner preconditioner type}