improvements in tutorial page 4 : block operations

1 files changed, 7 insertions, 5 deletions

diff --git a/doc/examples/Tutorial_BlockOperations_print_block.cpp b/doc/examples/Tutorial_BlockOperations_print_block.cpp
index 0fdefecdf..edea4aefe 100644
--- a/doc/examples/Tutorial_BlockOperations_print_block.cpp
+++ b/doc/examples/Tutorial_BlockOperations_print_block.cpp
@@ -1,6 +1,8 @@
 #include <Eigen/Dense>
 #include <iostream>
 
+using namespace std;
+
 int main()
 {
   Eigen::MatrixXf m(4,4);
@@ -8,11 +10,11 @@ int main()
         5, 6, 7, 8,
         9,10,11,12,
        13,14,15,16;
-  std::cout << "Block in the middle" << std::endl;
-  std::cout << m.block<2,2>(1,1) << std::endl << std::endl;
-  for (int i = 1; i < 4; ++i) 
+  cout << "Block in the middle" << endl;
+  cout << m.block<2,2>(1,1) << endl << endl;
+  for (int i = 1; i <= 3; ++i)
   {
-    std::cout << "Block of size " << i << std::endl;
-    std::cout << m.block(0,0,i,i) << std::endl << std::endl;
+    cout << "Block of size " << i << "x" << i << endl;
+    cout << m.block(0,0,i,i) << endl << endl;
   }
 }