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- #include <iostream>
- #include <Eigen/Dense>
- using namespace std;
- using namespace Eigen;
- int main()
- {
- Matrix2d A;
- A << 2, 1,
- 2, 0.9999999999;
- FullPivLU<Matrix2d> lu(A);
- cout << "By default, the rank of A is found to be " << lu.rank() << endl;
- lu.setThreshold(1e-5);
- cout << "With threshold 1e-5, the rank of A is found to be " << lu.rank() << endl;
- }
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