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author | Benoit Jacob <jacob.benoit.1@gmail.com> | 2010-06-30 10:11:55 -0400 |
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committer | Benoit Jacob <jacob.benoit.1@gmail.com> | 2010-06-30 10:11:55 -0400 |
commit | 4d4a23cd3e97bbc10d6307b828627c672097c5f5 (patch) | |
tree | edccff8f095690ba489a55d4fee79bf6ba78b00d /doc/examples/TutorialLinAlgRankRevealing.cpp | |
parent | b1741c1dc6c82737b69b20edfd817ef7e11ef28d (diff) |
nearly complete page 6 / linear algebra + examples
fix the previous/next links
Diffstat (limited to 'doc/examples/TutorialLinAlgRankRevealing.cpp')
-rw-r--r-- | doc/examples/TutorialLinAlgRankRevealing.cpp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/doc/examples/TutorialLinAlgRankRevealing.cpp b/doc/examples/TutorialLinAlgRankRevealing.cpp new file mode 100644 index 000000000..c5165077f --- /dev/null +++ b/doc/examples/TutorialLinAlgRankRevealing.cpp @@ -0,0 +1,20 @@ +#include <iostream> +#include <Eigen/Dense> + +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<Matrix3f> 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 +} |