Trying to make a 0 wind full screen formula gen

[Wolfeattehkitty]

Ok im trying to make a simple program in c++ That uses a formula with inputs to calculate shot distances in pixels.

So far here is my formula lines in c++.

Z = V*V;
U = sin(2*B)*Z;
R = U/g;

In essence it should be the same as saying
V^2*sin(2*B)/g

[WolfeatTehkitty]

Oh and here is my source code

#include <iostream>
using namespace std;
double R,V,B,g,Z,U,K;
int main()
{
cout << "What is The gravity of your shot I would start with 98?: ";
cin >> g;
cout << "What is The angle of the shot?: ";
cin >> B;
cout << "What is the power of the shot in pixels?: ";
cin >> V;
Z = V*V;
U = sin(2*B)*Z;
R = U/g;
cout << "The distance traveled is: " << R << endl;
system("PAUSE");
return 0;
}

[wolfeattehkitty]

Ok now im a member sorry for the triple post but all i need is some one to correct my formula.