source:
pacpussensors/trunk/Vislab/lib3dv/eigen/doc/examples/TutorialLinAlgExComputeSolveError.cpp@
138
Last change on this file since 138 was 136, checked in by , 8 years ago | |
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File size: 371 bytes |
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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 | } |
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