threed-beam-fea/ext/eigen-3.3.4/doc/examples/Tutorial_BlockOperations_co...

18 lines
390 B
C++
Raw Normal View History

2015-11-05 19:36:26 +01:00
#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;
}