#include <iostream>
#include "oct-cmplx.h"

int main ()
{
  Complex z1 (1.0, 1.0), z2 (1.0, 1.0);
  std::cout << (arg(z1)) << '\n';
  std::cout << (arg(z2)) << '\n';
  std::cout << (arg(z1)<arg(z2)) << '\n';
  std::cout << (arg(z1)-arg(z2)) << '\n';
}