From 44861dcbfeee041223c4aac1ee075e92fa4daa01 Mon Sep 17 00:00:00 2001 From: Stanislaw Halik Date: Sun, 18 Sep 2016 12:42:15 +0200 Subject: update --- eigen/doc/examples/TutorialLinAlgRankRevealing.cpp | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 eigen/doc/examples/TutorialLinAlgRankRevealing.cpp (limited to 'eigen/doc/examples/TutorialLinAlgRankRevealing.cpp') diff --git a/eigen/doc/examples/TutorialLinAlgRankRevealing.cpp b/eigen/doc/examples/TutorialLinAlgRankRevealing.cpp new file mode 100644 index 0000000..c516507 --- /dev/null +++ b/eigen/doc/examples/TutorialLinAlgRankRevealing.cpp @@ -0,0 +1,20 @@ +#include +#include + +using namespace std; +using namespace Eigen; + +int main() +{ + Matrix3f A; + A << 1, 2, 5, + 2, 1, 4, + 3, 0, 3; + cout << "Here is the matrix A:\n" << A << endl; + FullPivLU lu_decomp(A); + cout << "The rank of A is " << lu_decomp.rank() << endl; + cout << "Here is a matrix whose columns form a basis of the null-space of A:\n" + << lu_decomp.kernel() << endl; + cout << "Here is a matrix whose columns form a basis of the column-space of A:\n" + << lu_decomp.image(A) << endl; // yes, have to pass the original A +} -- cgit v1.2.3