| #include <iostream> |
| #include <Eigen/Dense> |
| |
| int main() |
| { |
| Eigen::Matrix2f A; |
| A << 1, 2, 2, 3; |
| std::cout << "Here is the matrix A:\n" << A << std::endl; |
| Eigen::SelfAdjointEigenSolver<Eigen::Matrix2f> eigensolver(A); |
| if (eigensolver.info() != Eigen::Success) abort(); |
| std::cout << "The eigenvalues of A are:\n" << eigensolver.eigenvalues() << std::endl; |
| std::cout << "Here's a matrix whose columns are eigenvectors of A \n" |
| << "corresponding to these eigenvalues:\n" |
| << eigensolver.eigenvectors() << std::endl; |
| } |
