#include <iostream>
#include <armadillo>

int main()
{
  using arma::mat, arma::randu;
  mat A = randu<mat>(4,5); // mat is double
  mat B = randu<mat>(4,5);
  
  std::cout << "A*trans(B) =" << "\n";
  std::cout << A*trans(B) << "\n";
}