Calculator

calc

// giCaluclatorProgram.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>
#include <cmath>

using namespace std;

int main()
{
	int choice = 0;
	bool quit = false;

	while (!quit)
	{
		cout << "1) cos(x), 2) sin(x), 3) tan(x), 4) atan2(y, x), 5) sqrt(x), 6) x^y" << endl;
		cout << "7) ln(x), 8) e^x, 9) |x|, 10) floor(x), 11) ceil(x), 12) Exit.";
		cin >> choice;

		switch(choice)
		{
		case 1:
			{
				float x = 0;
				cout << "Enter x: ";
				cin >> x;
				cout << "cos(x) = " << cosf(x) << endl;
				break;
			}
		case 2:
			{
				float x = 0;
				cout << "Enter x: ";
				cin >> x;
				cout << "sin(x) = " << sinf(x) << endl;
				break;
			}
		case 3:
			{
				float x = 0;
				cout << "Enter x: ";
				cin >> x;
				cout << "tan(x) = " << tanf(x) << endl;
				break;
			}
		case 4:
			{
				float x = 0;
				float y = 0;
				cout << "Enter x: ";
				cin >> x;
				cout << "Enter y: ";
				cin >> y;
				cout << "atan2(x) = " << atan2(y, x) << endl;
				break;
			}
		case 5:
			{
				float x = 0;
				cout << "Enter x: ";
				cin >> x;
				cout << "sqrt(x) = " << sqrtf(x) << endl;
				break;
			}
		case 6:
			{
				float x = 0;
				float y = 0;
				cout << "Enter x: ";
				cin >> x;
				cout << "Enter y: ";
				cin >> y;
				cout << "x^y = " << powf(x, y) << endl;
				break;
			}
		case 7: 
			{
				float x = 0;
				cout << "Enter x: ";
				cin >> x;
				cout << "ln(x) = " << logf(x) << endl;
				break;
			}
		case 8:
			{
				float x = 0;
				cout << "Enter x: ";
				cin >> x;
				cout << "e^x = " << expf(x) << endl;
				break;
			}
		case 9:
			{
				float x = 0;
				cout << "Enter x: ";
				cin >> x;
				cout << "|x| = " << fabsf(x) << endl;
				break;
			}
		case 10:
			{
				float x = 0;
				cout << "Enter x: ";
				cin >> x;
				cout << "floor(x) = " << floorf(x) << endl;
				break;
			}
		case 11:
			{
				float x = 0;
				cout << "Enter x: ";
				cin >> x;
				cout << "ceil(x) = " << ceilf(x) << endl;
				break;
			}
		case 12:
			{
				cout << "Exiting..." << endl;
				quit = true;
				break;
			}
		default:
			{
				cout << "You've entered an invalid key." << endl;
				break;
			}	
		}
	}
}