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-rw-r--r--doc/snippets/MatrixBase_colwise.cpp5
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diff --git a/doc/snippets/MatrixBase_colwise.cpp b/doc/snippets/MatrixBase_colwise.cpp
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+++ b/doc/snippets/MatrixBase_colwise.cpp
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+Matrix3d m = Matrix3d::Random();
+cout << "Here is the matrix m:" << endl << m << endl;
+cout << "Here is the sum of each column:" << endl << m.colwise().sum() << endl;
+cout << "Here is the maximum absolute value of each column:"
+ << endl << m.cwiseAbs().colwise().maxCoeff() << endl;