TutorialLinAlgExComputeSolveError.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  MatrixXd A = MatrixXd::Random(100,100);
10  MatrixXd b = MatrixXd::Random(100,50);
11  MatrixXd x = A.fullPivLu().solve(b);
12  double relative_error = (A*x - b).norm() / b.norm(); // norm() is L2 norm
13  cout << "The relative error is:\n" << relative_error << endl;
14 }
Eigen
Namespace containing all symbols from the Eigen library.
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b
Scalar * b
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x
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Definition: gnuplot_common_settings.hh:12
main
int main()
Definition: TutorialLinAlgExComputeSolveError.cpp:7
A
Matrix< SCALARA, Dynamic, Dynamic, opt_A > A
Definition: bench_gemm.cpp:48
std
Definition: BFloat16.h:88


gtsam
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autogenerated on Fri Nov 1 2024 03:43:02