Tutorial_BlockOperations_colrow.cpp
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	#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;
	}