Documentation: add some pointers to step-20

diff --git a/doc/doxygen/headers/laoperators.h b/doc/doxygen/headers/laoperators.h
index 64d8bfe40fad9b4372bd04d57839400e201fa379..49d2a122bda00ad122fb1c65b6419a48c099c4a7 100644 (file)
--- a/doc/doxygen/headers/laoperators.h
+++ b/doc/doxygen/headers/laoperators.h
@@ -89,6 +89,9 @@
  * encapsulation of individual linear operators into blocked linear
  * operator variants.
  *
+ * The step-20 tutorial program has a detailed usage example of the
+ * LinearOperator class.
+ *
  * @note As explained below, when using LinearOperator as <code>res = op_a*x</code>
  * a PackagedOperation class instance is generated behind-the-curtains.
  * Consequently, the user program has to include header files for both classes
@@ -175,6 +178,9 @@
  *   Vector<double> residual =  b - op_a * x; // computes the residual at this point
  * @endcode
  *
+ * The step-20 tutorial program has a detailed usage example of the
+ * PackagedOperation class.
+ *
  *
  * @ingroup LAC
  * @ingroup MATRICES

diff --git a/include/deal.II/lac/linear_operator.h b/include/deal.II/lac/linear_operator.h
index e066190781cd43e7ff033a85b9af792e409217fe..ef84db6e253c892894817b7c2a9c7e41956aa0d3 100644 (file)
--- a/include/deal.II/lac/linear_operator.h
+++ b/include/deal.II/lac/linear_operator.h
@@ -151,6 +151,9 @@ null_operator(const LinearOperator<Range, Domain, Payload> &);
  * for linear operators have been provided within the respective
  * TrilinosWrappers (and, in the future, PETScWrappers) namespaces.
  *
+ * @note The step-20 tutorial program has a detailed usage example of the
+ * LinearOperator class.
+ *
  * @author Luca Heltai, Matthias Maier, 2015; Jean-Paul Pelteret, 2016
  *
  * @ingroup LAOperators

diff --git a/include/deal.II/lac/packaged_operation.h b/include/deal.II/lac/packaged_operation.h
index 8c73828e2ad1a48b3e95db44b56b8a5a4c431af5..f4da9786afeff55fee3832d37f83d684f1c67002 100644 (file)
--- a/include/deal.II/lac/packaged_operation.h
+++ b/include/deal.II/lac/packaged_operation.h
@@ -93,6 +93,9 @@ class PackagedOperation;
  *   y -= residual;
  * @endcode
  *
+ * @note The step-20 tutorial program has a detailed usage example of the
+ * LinearOperator class.
+ *
  * @author Matthias Maier, 2015
  *
  * @ingroup LAOperators