Go to the documentation of this file.00001 #include <Eigen/Core>
00002 #include <Eigen/LU>
00003 #include <Eigen/QR>
00004 #include <Eigen/Cholesky>
00005 #include <Eigen/Geometry>
00006 #include <Eigen/Jacobi>
00007 #include <Eigen/Eigenvalues>
00008 #include <iostream>
00009
00010 using namespace Eigen;
00011 using namespace std;
00012
00013 int main(int, char**)
00014 {
00015 cout.precision(3);
00016 Matrix4f A = MatrixXf::Random(4,4);
00017 cout << "Here is a random 4x4 matrix:" << endl << A << endl;
00018 HessenbergDecomposition<MatrixXf> hessOfA(A);
00019 MatrixXf H = hessOfA.matrixH();
00020 cout << "The Hessenberg matrix H is:" << endl << H << endl;
00021 MatrixXf Q = hessOfA.matrixQ();
00022 cout << "The orthogonal matrix Q is:" << endl << Q << endl;
00023 cout << "Q H Q^T is:" << endl << Q * H * Q.transpose() << endl;
00024
00025 return 0;
00026 }