diff -r c8c5a2a4ec71 -r 72867897fcba lp.dox
--- a/lp.dox	Mon Feb 22 02:03:25 2010 +0100
+++ b/lp.dox	Mon Feb 22 13:00:14 2010 +0100
@@ -65,9 +65,9 @@
   lp.obj(10 * x1 + 6 * x2);
   lp.solve();
 
-  cout << "Objective function value: " << lp.primal() << endl;
-  cout << "x1 = " << lp.primal(x1) << endl;
-  cout << "x2 = " << lp.primal(x2) << endl;
+  std::cout << "Objective function value: " << lp.primal() << std::endl;
+  std::cout << "x1 = " << lp.primal(x1) << std::endl;
+  std::cout << "x2 = " << lp.primal(x2) << std::endl;
 \endcode
 
 \ref LpBase::Col "Lp::Col" type represents the variables in the LP problems,
@@ -110,6 +110,8 @@
   lp.max();
   lp.obj(o);
   lp.solve();
+
+  std::cout << "Max flow value: " << lp.primal() << std::endl;
 \endcode
 
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