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 MatrixXd X = MatrixXd::Random(5,5);
00017 MatrixXd A = X + X.transpose();
00018 cout << "Here is a random symmetric 5x5 matrix:" << endl << A << endl << endl;
00019
00020 VectorXd diag(5);
00021 VectorXd subdiag(4);
00022 internal::tridiagonalization_inplace(A, diag, subdiag, true);
00023 cout << "The orthogonal matrix Q is:" << endl << A << endl;
00024 cout << "The diagonal of the tridiagonal matrix T is:" << endl << diag << endl;
00025 cout << "The subdiagonal of the tridiagonal matrix T is:" << endl << subdiag << endl;
00026
00027 return 0;
00028 }