// ScalarProduct.cc
// Calculating the scalar product between vectors input by user

#include <iostream>
using namespace std;

int main()
{
   float vectorA[3], vectorB[3], scalar=0.0;
		   
   // Get input vectors from user.
   cout << "Enter elements of first vector: " << endl;
   for(int i=0;i<3;i++)
   {
      cin >> vectorA[i];
   }
   cout << "Enter elements of second vector: " << endl;
   for(int i=0;i<3;i++)
   {
      cin >> vectorB[i];
   }
  
   // Calculate scalar product.
   for(int i=0;i<3;i++)
   {
      scalar = scalar + (vectorA[i] * vectorB[i]);
   }

   // Output result.
   cout << "The scalar product is " << scalar << endl;
   return 0;
}