Added example to documentation of iterative linear solvers.

src/TNL/Solvers/Linear/BICGStab.h

@@ -23,6 +23,8 @@ namespace TNL {
  *
  * See [Wikipedia](https://en.wikipedia.org/wiki/Biconjugate_gradient_stabilized_method) for more details.
  *
+ * See \ref TNL::Solvers::Linear::IterativeSolver for example of showing how to use the linear solvers.
+ *
  * \tparam Matrix is type of matrix describing the linear system.
  */
 template< typename Matrix >

src/TNL/Solvers/Linear/BICGStabL.h

@@ -71,7 +71,9 @@ namespace TNL {
  *
  * [4] Martin H. Gutknecht, "Variants of BiCGStab for matrices with complex
  *     spectrum", IPS Research Report No. 91-14 (1991).
-
+ *
+ * See \ref TNL::Solvers::Linear::IterativeSolver for example of showing how to use the linear solvers.
+ *
  * \tparam Matrix is type of matrix describing the linear system.
  */
 template< typename Matrix >

src/TNL/Solvers/Linear/CG.h

@@ -24,6 +24,8 @@ namespace TNL {
  * See [Wikipedia](https://en.wikipedia.org/wiki/Conjugate_gradient_method) for more details.
  *
  * \tparam Matrix is type of matrix describing the linear system.
+ *
+ * See \ref TNL::Solvers::Linear::IterativeSolver for example of showing how to use the linear solvers.
  */
 template< typename Matrix >
 class CG

src/TNL/Solvers/Linear/GMRES.h

@@ -37,6 +37,10 @@ namespace TNL {
  *
  * See [Wikipedia](https://en.wikipedia.org/wiki/Generalized_minimal_residual_method) for more details.
  *
+ * See \ref TNL::Solvers::Linear::IterativeSolver for example of showing how to use the linear solvers.
+ *
+ * See \ref TNL::Solvers::Linear::IterativeSolver for example of showing how to use the linear solvers.
+ *
  * \tparam Matrix is type of matrix describing the linear system.
  */
 template< typename Matrix >

src/TNL/Solvers/Linear/Jacobi.h

@@ -21,6 +21,8 @@ namespace TNL {
  *
  * See [Wikipedia](https://en.wikipedia.org/wiki/Jacobi_method) for more details.
  *
+ * See \ref TNL::Solvers::Linear::IterativeSolver for example of showing how to use the linear solvers.
+ *
  * \tparam Matrix is type of matrix describing the linear system.
  */
 template< typename Matrix >