TutorialLinAlgSetThreshold.cpp
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1 #include <iostream>
2 #include <Eigen/Dense>
3 
4 using namespace std;
5 using namespace Eigen;
6 
7 int main()
8 {
9  Matrix2d A;
10  A << 2, 1,
11  2, 0.9999999999;
12  FullPivLU<Matrix2d> lu(A);
13  cout << "By default, the rank of A is found to be " << lu.rank() << endl;
14  lu.setThreshold(1e-5);
15  cout << "With threshold 1e-5, the rank of A is found to be " << lu.rank() << endl;
16 }
Eigen
Namespace containing all symbols from the Eigen library.
Definition: jet.h:637
e
Array< double, 1, 3 > e(1./3., 0.5, 2.)
Eigen::FullPivLU
LU decomposition of a matrix with complete pivoting, and related features.
Definition: ForwardDeclarations.h:268
A
Matrix< SCALARA, Dynamic, Dynamic, opt_A > A
Definition: bench_gemm.cpp:48
lu
cout<< "Here is the matrix m:"<< endl<< m<< endl;Eigen::FullPivLU< Matrix5x3 > lu(m)
std
Definition: BFloat16.h:88
main
int main()
Definition: TutorialLinAlgSetThreshold.cpp:7

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autogenerated on Fri Mar 28 2025 03:09:09