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

   1 Matrix4d A = Matrix4d::Random(4,4);
   2 cout << "Here is a random 4x4 matrix:" << endl << A << endl;
   3 HessenbergDecomposition<Matrix4d> hessOfA(A);
   4 Matrix4d pm = hessOfA.packedMatrix();
   5 cout << "The packed matrix M is:" << endl << pm << endl;
   6 cout << "The upper Hessenberg part corresponds to the matrix H, which is:"
   7      << endl << hessOfA.matrixH() << endl;
   8 Vector3d hc = hessOfA.householderCoefficients();
   9 cout << "The vector of Householder coefficients is:" << endl << hc << endl;