ground/gcs/src/libs/eigen/doc/snippets/TopicAliasing_mult2.cpp

   1 MatrixXf matA(2,2), matB(2,2);
   2 matA << 2, 0,  0, 2;
   3
   4 // Simple but not quite as efficient
   5 matB = matA * matA;
   6 cout << matB << endl << endl;
   7
   8 // More complicated but also more efficient
   9 matB.noalias() = matA * matA;
  10 cout << matB;