QuickStart_example2_dynamic.cpp

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#include <iostream>
#include <Eigen/Dense>
 
using Eigen::MatrixXd;
using Eigen::VectorXd;
 
int main()
{
  MatrixXd m = MatrixXd::Random(3,3);
  m = (m + MatrixXd::Constant(3,3,1.2)) * 50;
  std::cout << "m =" << std::endl << m << std::endl;
  VectorXd v(3);
  v << 1, 2, 3;
  std::cout << "m * v =" << std::endl << m * v << std::endl;
}