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author | Carlos Hernandez <chernand@google.com> | 2014-08-05 17:53:32 -0700 |
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committer | Carlos Hernandez <chernand@google.com> | 2014-08-05 17:54:05 -0700 |
commit | 7faaa9f3f0df9d23790277834d426c3d992ac3ba (patch) | |
tree | b788ae3b96daf9f5a79d8ec434e1e9edd56b3a72 /doc/examples/function_taking_ref.cpp | |
parent | 810535bb0c575a003b32076e5352ab8fd3f23a1c (diff) | |
download | eigen-7faaa9f3f0df9d23790277834d426c3d992ac3ba.tar.gz |
Update Eigen to the latest stable release, 3.2.2android-wear-5.1.1_r1android-wear-5.1.0_r1android-wear-5.0.0_r1android-l-preview_r2android-cts-5.1_r9android-cts-5.1_r8android-cts-5.1_r7android-cts-5.1_r6android-cts-5.1_r5android-cts-5.1_r4android-cts-5.1_r3android-cts-5.1_r28android-cts-5.1_r27android-cts-5.1_r26android-cts-5.1_r25android-cts-5.1_r24android-cts-5.1_r23android-cts-5.1_r22android-cts-5.1_r21android-cts-5.1_r20android-cts-5.1_r2android-cts-5.1_r19android-cts-5.1_r18android-cts-5.1_r17android-cts-5.1_r16android-cts-5.1_r15android-cts-5.1_r14android-cts-5.1_r13android-cts-5.1_r10android-cts-5.1_r1android-cts-5.0_r9android-cts-5.0_r8android-cts-5.0_r7android-cts-5.0_r6android-cts-5.0_r5android-cts-5.0_r4android-cts-5.0_r3android-5.1.1_r9android-5.1.1_r8android-5.1.1_r7android-5.1.1_r6android-5.1.1_r5android-5.1.1_r4android-5.1.1_r38android-5.1.1_r37android-5.1.1_r36android-5.1.1_r35android-5.1.1_r34android-5.1.1_r33android-5.1.1_r30android-5.1.1_r3android-5.1.1_r29android-5.1.1_r28android-5.1.1_r26android-5.1.1_r25android-5.1.1_r24android-5.1.1_r23android-5.1.1_r22android-5.1.1_r20android-5.1.1_r2android-5.1.1_r19android-5.1.1_r18android-5.1.1_r17android-5.1.1_r16android-5.1.1_r15android-5.1.1_r14android-5.1.1_r13android-5.1.1_r12android-5.1.1_r10android-5.1.1_r1android-5.1.0_r5android-5.1.0_r4android-5.1.0_r3android-5.1.0_r1android-5.0.2_r3android-5.0.2_r1android-5.0.1_r1android-5.0.0_r7android-5.0.0_r6android-5.0.0_r5.1android-5.0.0_r5android-5.0.0_r4android-5.0.0_r3android-5.0.0_r2android-5.0.0_r1lollipop-wear-releaselollipop-releaselollipop-mr1-wfc-releaselollipop-mr1-releaselollipop-mr1-fi-releaselollipop-mr1-devlollipop-mr1-cts-releaselollipop-devlollipop-cts-releasel-preview
./Eigen/src/Core/util/NonMPL2.h is left untouched, so that
usage of non MPL2 code is disabled.
Change-Id: I86fc9257b3c30d0ca15b268d4ef07bf038bba7ca
Diffstat (limited to 'doc/examples/function_taking_ref.cpp')
-rw-r--r-- | doc/examples/function_taking_ref.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/doc/examples/function_taking_ref.cpp b/doc/examples/function_taking_ref.cpp new file mode 100644 index 000000000..162a202e4 --- /dev/null +++ b/doc/examples/function_taking_ref.cpp @@ -0,0 +1,19 @@ +#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; +} |