Added more redux types/examples in tutorial and fixed some display issues

doc/examples/Tutorial_ReductionsVisitorsBroadcasting_reductions_norm.cpp

@@ -0,0 +1,28 @@
+#include <Eigen/Dense>
+#include <iostream>
+
+using namespace std;
+using namespace Eigen;
+
+int main()
+{
+  VectorXf v(2);
+  MatrixXf m(2,2), n(2,2);
+  
+  v << 5,
+       10;
+  
+  m << 2,2,
+       3,4;
+
+  n << 1, 2,
+       32,12;
+  
+  cout << "v.norm() = " << v.norm() << endl;
+  cout << "m.norm() = " << m.norm() << endl;
+  cout << "n.norm() = " << n.norm() << endl;
+  cout << endl;
+  cout << "v.squaredNorm() = " << v.squaredNorm() << endl;
+  cout << "m.squaredNorm() = " << m.squaredNorm() << endl;
+  cout << "n.squaredNorm() = " << n.squaredNorm() << endl;
+}