00001 #include <iostream> 00002 #include <Eigen/Dense> 00003 00004 using namespace Eigen; 00005 00006 int main() 00007 { 00008 MatrixXd m(2,2); 00009 m(0,0) = 3; 00010 m(1,0) = 2.5; 00011 m(0,1) = -1; 00012 m(1,1) = m(1,0) + m(0,1); 00013 std::cout << "Here is the matrix m:\n" << m << std::endl; 00014 VectorXd v(2); 00015 v(0) = 4; 00016 v(1) = v(0) - 1; 00017 std::cout << "Here is the vector v:\n" << v << std::endl; 00018 }