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authorStanislaw Halik <sthalik@misaki.pl>2019-03-03 21:09:10 +0100
committerStanislaw Halik <sthalik@misaki.pl>2019-03-03 21:10:13 +0100
commitf0238cfb6997c4acfc2bd200de7295f3fa36968f (patch)
treeb215183760e4f615b9c1dabc1f116383b72a1b55 /eigen/doc/examples/function_taking_ref.cpp
parent543edd372a5193d04b3de9f23c176ab439e51b31 (diff)
don't index Eigen
Diffstat (limited to 'eigen/doc/examples/function_taking_ref.cpp')
-rw-r--r--eigen/doc/examples/function_taking_ref.cpp19
1 files changed, 0 insertions, 19 deletions
diff --git a/eigen/doc/examples/function_taking_ref.cpp b/eigen/doc/examples/function_taking_ref.cpp
deleted file mode 100644
index 162a202..0000000
--- a/eigen/doc/examples/function_taking_ref.cpp
+++ /dev/null
@@ -1,19 +0,0 @@
-#include <iostream>
-#include <Eigen/SVD>
-using namespace Eigen;
-using namespace std;
-
-float inv_cond(const Ref<const MatrixXf>& a)
-{
- const VectorXf sing_vals = a.jacobiSvd().singularValues();
- return sing_vals(sing_vals.size()-1) / sing_vals(0);
-}
-
-int main()
-{
- Matrix4f m = Matrix4f::Random();
- cout << "matrix m:" << endl << m << endl << endl;
- cout << "inv_cond(m): " << inv_cond(m) << endl;
- cout << "inv_cond(m(1:3,1:3)): " << inv_cond(m.topLeftCorner(3,3)) << endl;
- cout << "inv_cond(m+I): " << inv_cond(m+Matrix4f::Identity()) << endl;
-}