threed-beam-fea/ext/eigen-3.2.4/doc/examples/Tutorial_ReductionsVisitors...

21 lines
361 B
C++

#include <iostream>
#include <Eigen/Dense>
using namespace std;
int main()
{
Eigen::MatrixXf mat(2,4);
Eigen::VectorXf v(4);
mat << 1, 2, 6, 9,
3, 1, 7, 2;
v << 0,1,2,3;
//add v to each row of m
mat.rowwise() += v.transpose();
std::cout << "Broadcasting result: " << std::endl;
std::cout << mat << std::endl;
}