#include <iostream.h>
#include "Vector.h"

double aa[] = {3.1, 4.2, 5.3, 6.4, 7.5};
double bb[] = {3.1, 4.2, -5.3, 6.4, -7.5};

int main()
{  Vector va(5,aa), vb(5,bb);
   Vector vc;
   va.display(); vb.display();
   vc = va + va;
   vc.OP +=(vb);
   vc.display();
   OP +=(vc, vb);
   vc.display();
   (-1 * vc).display();
   return(0);
}