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-rw-r--r--test/lu.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/test/lu.cpp b/test/lu.cpp
index 144496e91..effde6060 100644
--- a/test/lu.cpp
+++ b/test/lu.cpp
@@ -57,6 +57,10 @@ template<typename MatrixType> void lu_non_invertible()
// The image of the zero matrix should consist of a single (zero) column vector
VERIFY((MatrixType::Zero(rows,cols).fullPivLu().image(MatrixType::Zero(rows,cols)).cols() == 1));
+ // The kernel of the zero matrix is the entire space, and thus is an invertible matrix of dimensions cols.
+ KernelMatrixType kernel = MatrixType::Zero(rows,cols).fullPivLu().kernel();
+ VERIFY((kernel.fullPivLu().isInvertible()));
+
MatrixType m1(rows, cols), m3(rows, cols2);
CMatrixType m2(cols, cols2);
createRandomPIMatrixOfRank(rank, rows, cols, m1);