doc/examples/tut_matrix_resize_fixed_size.cpp


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#include <iostream>
#include <Eigen/Dense>

using namespace Eigen;

int main()
{
  Matrix4d m;
  m.resize(4,4); // no operation
  std::cout << "The matrix m is of size "
            << m.rows() << "x" << m.cols() << std::endl;
}