Tutorial_ArrayClass_accessors.cpp
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	#include <Eigen/Dense>
	#include <iostream>

	using namespace Eigen;
	using namespace std;

	int main()
	{
	ArrayXXf m(2,2);

	// assign some values coefficient by coefficient
	m(0,0) = 1.0; m(0,1) = 2.0;
	m(1,0) = 3.0; m(1,1) = m(0,1) + m(1,0);

	// print values to standard output
	cout << m << endl << endl;

	// using the comma-initializer is also allowed
	m << 1.0,2.0,
	3.0,4.0;

	// print values to standard output
	cout << m << endl;
	}