update

1 files changed, 13 insertions, 0 deletions

diff --git a/eigen/doc/examples/Tutorial_ReductionsVisitorsBroadcasting_colwise.cpp b/eigen/doc/examples/Tutorial_ReductionsVisitorsBroadcasting_colwise.cpp
new file mode 100644
index 0000000..df68256
--- /dev/null
+++ b/eigen/doc/examples/Tutorial_ReductionsVisitorsBroadcasting_colwise.cpp
@@ -0,0 +1,13 @@
+#include <iostream>
+#include <Eigen/Dense>
+
+using namespace std;
+int main()
+{
+  Eigen::MatrixXf mat(2,4);
+  mat << 1, 2, 6, 9,
+         3, 1, 7, 2;
+  
+  std::cout << "Column's maximum: " << std::endl
+   << mat.colwise().maxCoeff() << std::endl;
+}