ground/gcs/src/libs/eigen/doc/snippets/Vectorwise_reverse.cpp

   1 MatrixXi m = MatrixXi::Random(3,4);
   2 cout << "Here is the matrix m:" << endl << m << endl;
   3 cout << "Here is the rowwise reverse of m:" << endl << m.rowwise().reverse() << endl;
   4 cout << "Here is the colwise reverse of m:" << endl << m.colwise().reverse() << endl;
   5
   6 cout << "Here is the coefficient (1,0) in the rowise reverse of m:" << endl
   7 << m.rowwise().reverse()(1,0) << endl;
   8 cout << "Let us overwrite this coefficient with the value 4." << endl;
   9 //m.colwise().reverse()(1,0) = 4;
  10 cout << "Now the matrix m is:" << endl << m << endl;