diff --git a/doc/samples/mapped_matrix.cpp b/doc/samples/mapped_matrix.cpp
new file mode 100644
index 0000000..92b5ca7
--- /dev/null
+++ b/doc/samples/mapped_matrix.cpp
@@ -0,0 +1,24 @@
+//
+//  Copyright (c) 2000-2002
+//  Joerg Walter, Mathias Koch
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+//  The authors gratefully acknowledge the support of
+//  GeNeSys mbH & Co. KG in producing this work.
+//
+
+#include <boost/numeric/ublas/matrix_sparse.hpp>
+#include <boost/numeric/ublas/io.hpp>
+
+int main () {
+    using namespace boost::numeric::ublas;
+    mapped_matrix<double> m (3, 3, 3 * 3);
+    for (unsigned i = 0; i < m.size1 (); ++ i)
+        for (unsigned j = 0; j < m.size2 (); ++ j)
+            m (i, j) = 3 * i + j;
+    std::cout << m << std::endl;
+}
+