cart-elc

Tutorial_simple_example_dynamic_size.cpp (680B)

---

 #include <Eigen/Core>
 #include <iostream>
 
 using namespace Eigen;
 
 int main()
 {
   for (int size=1; size<=4; ++size)
   {
     MatrixXi m(size,size+1);         // a (size)x(size+1)-matrix of int's
     for (int j=0; j<m.cols(); ++j)   // loop over columns
       for (int i=0; i<m.rows(); ++i) // loop over rows
         m(i,j) = i+j*size;           // to access matrix coefficients,
                                      // use operator()(int,int)
     std::cout << m << "\n\n";
   }
 
   VectorXf v(4); // a vector of 4 float's
   // to access vector coefficients, use either operator () or operator []
   v[0] = 1; v[1] = 2; v(2) = 3; v(3) = 4;
   std::cout << "\nv:\n" << v << std::endl;
 }