/* Answer to erroneous Problem #4
the purpsoe of the program is to calculate the formula C based on the rules shown:

                  1/ 2
      10 - (A - 4) 
C=   --------------------- + A 
         B - 2

Rule #1: B cannot be 2
Rule #2: A-4 cannot be negative

*/

#include <iostream>
#include <CMath>
using namespace std;

int main()
  {
	cout<<"Enter a value for B? ";
	double B;
	cin>>B;
	cout<<"Enter a value for A? ";
	double A;
	cin>>A;
	if (B == 2)
	{
		cout<<"B cannot be 2\n";
	}
	else
	{
		if (A - 4  < 0)
		{
			cout<<"A - 4 cannot be negative\n";
		}
		else
		{
			double C;
			C= (10 - sqrt(A - 4)) /  (B - 2);
			cout<<"C= "<<C<<"\n";
		}
	}	
	system("PAUSE");
	return 0;
  }



/*  
IO Screen Example 1
--------------------
Enter a value for B? 2
Enter a value for A? 5
B cannot be 2
Press any key to continue . . .

IO Screen Example 2
--------------------
Enter a value for B? 4
Enter a value for A? 2
A - 4 cannot be negative
Press any key to continue . . .

IO Screen Example 3
--------------------
Enter a value for B? 5
Enter a value for A? 7
C= 2.75598
Press any key to continue . . .

*/


-------------IO SCREEN----------------------

Please enter three integers for a, b, and c? 1 8 1 
root1= -0.127017 root2= -7.87298
Press any key to continue
*/