eigen/doc/examples/Tutorial_BlockOperations_colrow.cpp

15 lines
383 B
C++

#include <Eigen/Dense>
#include <iostream>
using namespace std;
int main() {
Eigen::MatrixXf m(3, 3);
m << 1, 2, 3, 4, 5, 6, 7, 8, 9;
cout << "Here is the matrix m:" << endl << m << endl;
cout << "2nd Row: " << m.row(1) << endl;
m.col(2) += 3 * m.col(0);
cout << "After adding 3 times the first column into the third column, the matrix m is:\n";
cout << m << endl;
}