Calculator

//Eric Johnson
//Simple Calculator
//03-27-12
#include <iostream>
#include <math>
#include "calc_func.hpp"
#include "clear.hpp"
using namespace std;
int main()
{
char operation;
double a, b, answer;
cout << "Please input the first operand: ";
cin >> a;
clear();
cout << "Please input the second operand: ";
cin >> b;
clear();
cout << "Please input the operation you wish to perform: "
cin >> operation
switch (operation)
{
    case (a):
        add();
        break;
    case (m):
        multiply();
        break;
    case (d):
        divide();
        break;
    case (s):
        subtract();
        break;
    case (p):
        AtoB();
        break;
    case (r):
        BtoA();
        break;
}
cout << "\nThese are you operands: " << a << "&: " << b << endl;
cout << "This is the answer to your problems: " << answer << endl;
}