diff options
Diffstat (limited to 'doc/examples/Tutorial_ReductionsVisitorsBroadcasting_maxnorm.cpp')
-rw-r--r-- | doc/examples/Tutorial_ReductionsVisitorsBroadcasting_maxnorm.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/doc/examples/Tutorial_ReductionsVisitorsBroadcasting_maxnorm.cpp b/doc/examples/Tutorial_ReductionsVisitorsBroadcasting_maxnorm.cpp new file mode 100644 index 000000000..cb46887b6 --- /dev/null +++ b/doc/examples/Tutorial_ReductionsVisitorsBroadcasting_maxnorm.cpp @@ -0,0 +1,19 @@ +#include <iostream> +#include <Eigen/Dense> + +using namespace std; +int main() +{ + Eigen::MatrixXf mat(2,4); + mat << 1, 2, 6, 9, + 3, 1, 7, 2; + + int maxIndex; + float maxNorm = mat.colwise().sum().maxCoeff(&maxIndex); + + std::cout << "Maximum sum at position " << maxIndex << std::endl; + + std::cout << "The corresponding vector is: " << std::endl; + std::cout << mat.col( maxIndex ) << std::endl; + std::cout << "And its sum is is: " << maxNorm << std::endl; +} |