Scientific_Calculator.cpp

#include <iostream>
#include <cmath>
#include <windows.h>

using namespace std;

void Calculator(void);
void logo(void);
void board(void);
double Factorial(double);

int main()
{

    Calculator();

    return 0;
}

void logo(void)
{
    string logo = R"(
             _____________________
            |  _________________  |
            | |  Cpp Cal     0. | |  .----------------.  .----------------.  .----------------.  .----------------. 
            | |_________________| | | .--------------. || .--------------. || .--------------. || .--------------. |
            |  ___ ___ ___   ___  | | |     ______   | || |      __      | || |   _____      | || |     ______   | |
            | | 7 | 8 | 9 | | + | | | |   .' ___  |  | || |     /  \     | || |  |_   _|     | || |   .' ___  |  | |
            | |___|___|___| |___| | | |  / .'   \_|  | || |    / /\ \    | || |    | |       | || |  / .'   \_|  | |
            | | 4 | 5 | 6 | | - | | | |  | |         | || |   / ____ \   | || |    | |   _   | || |  | |         | |
            | |___|___|___| |___| | | |  \ `.___.'\  | || | _/ /    \ \_ | || |   _| |__/ |  | || |  \ `.___.'\  | |
            | | 1 | 2 | 3 | | x | | | |   `._____.'  | || ||____|  |____|| || |  |________|  | || |   `._____.'  | |
            | |___|___|___| |___| | | |              | || |              | || |              | || |              | |
            | | . | 0 | = | | / | | | '--------------' || '--------------' || '--------------' || '--------------' |
            | |___|___|___| |___| |  '----------------'  '----------------'  '----------------'  '----------------' 
            |_____________________|
)";

    cout << "\t\t\t\t" << logo << endl;
}

void board(void)
{
    // First Row;
    cout << "\t\t\t\t\t _______________     _________________    ___________________    _______________" << endl;
    cout << "\t\t\t\t\t|               |   |                 |  |                   |  |               |\t" << endl;
    cout << "\t\t\t\t\t|  1-ADDITION   |   | 2-SUBSTRACTION  |  | 3-MULTIPLICATION  |  |  4-DIVISION   |\t" << endl;
    cout << "\t\t\t\t\t|_______________|   |_________________|  |___________________|  |_______________|" << endl;

    // Second Row;
    cout << "\t\t\t\t\t\t\t       _________    _________    _________" << endl;
    cout << "\t\t\t\t\t\t\t      |         |  |         |  |         |" << endl;
    cout << "\t\t\t\t\t\t\t      | 5-sin() |  | 6-cos() |  | 7-tan() |" << endl;
    cout << "\t\t\t\t\t\t\t      |_________|  |_________|  |_________|" << endl;

    // Third Row;
    cout << "\t\t\t\t      _________________     _________________    _____________________    _________________" << endl;
    cout << "\t\t\t\t     |                 |   |                 |  |                     |  |                 |\t" << endl;
    cout << "\t\t\t\t     |  8-SQUARE ROOT  |   |   9-FACTORIAL   |  |  10-EXPONENTIATION  |  |  11-CUBE ROOT   |\t" << endl;
    cout << "\t\t\t\t     |_________________|   |_________________|  |_____________________|  |_________________|" << endl;
}

void Calculator(void)
{

again:
    // clear Screen
    system("CLS");
    // Heading;
    logo();
    board();
    cout << endl
         << endl
         << endl;
    int num;
    cout << "\t\t\t\t Chose The Operation and Enter it's Respective Number : " << endl
         << "\t\t\t\t -> ";
    cin >> num;

    double num1, num2, result;
    switch (num)
    {
    case (1):
    {
        system("CLS");
        cout << endl
             << endl
             << "\t\t\t\t Enter The First Number : ";
        cin >> num1;
        cout << "\t\t\t\t Enter The Second Number : ";
        cin >> num2;
        result = num1 + num2;
        cout << "\t\t\t\t  " << num1 << " + " << num2 << " = " << result << endl;
    }
    break;
    case (2):
    {
        system("CLS");
        cout << endl
             << endl
             << "\t\t\t\t Enter The First Number : ";
        cin >> num1;
        cout << "\t\t\t\t Enter The Second Number : ";
        cin >> num2;
        result = num1 - num2;
        cout << "\t\t\t\t  " << num1 << " - " << num2 << " = " << result << endl;
    }
    break;
    case (3):
    {
        system("CLS");
        cout << endl
             << endl
             << "\t\t\t\t Enter The First Number : ";
        cin >> num1;
        cout << "\t\t\t\t Enter The Second Number : ";
        cin >> num2;
        result = num1 * num2;
        cout << "\t\t\t\t  " << num1 << " x " << num2 << " = " << result << endl;
    }
    break;
    case (4):
    {
        system("CLS");
        cout << endl
             << endl
             << "\t\t\t\t Enter The First Number : ";
        cin >> num1;
        cout << "\t\t\t\t Enter The Second Number : ";
        cin >> num2;
        if (num2 == 0)
        {
            cout << " \t\t\t\t  Math Error !!!!!" << endl;
        }
        else
        {
            result = num1 / num2;
            cout << "\t\t\t\t  " << num1 << "/" << num2 << " = " << result << endl;
        }
    }
    break;
    case (5):
    {
        system("CLS");
        cout << endl
             << endl
             << "\t\t\t\t Enter The Angle in Radians : ";
        cin >> num1;
        result = sin(num1);
        cout << "\t\t\t\t  "
             << " sin(" << num << ") = " << result << endl;
    }
    break;
    case (6):
    {
        system("CLS");
        cout << endl
             << endl
             << "\t\t\t\t Enter The Angle in Radians : ";
        cin >> num1;
        result = cos(num1);
        cout << "\t\t\t\t  "
             << " cos(" << num << ") = " << result << endl;
    }
    break;
    case (7):
    {
        system("CLS");
        cout << endl
             << endl
             << "\t\t\t\t Enter The Angle in Radians : ";
        cin >> num1;
        result = tan(num1);
        cout << "\t\t\t\t  "
             << " tan(" << num << ") = " << result << endl;
    }
    break;
    case (8):
    {
        system("CLS");
        cout << endl
             << endl
             << "\t\t\t\t Enter The Number : ";
        cin >> num1;
        cout << "\t\t\t\t "
             << " Square Root of " << num1 << " = " << sqrt(num1) << endl;
    }
    break;
    case (9):
    {
        system("CLS");
        cout << endl
             << endl
             << "\t\t\t\t Enter The Number : ";
        cin >> num1;
        cout << "\t\t\t\t " << num1 << "! = " << Factorial(num1) << endl;
    }
    break;
    case (10):
    {
        system("CLS");
        cout << endl
             << endl
             << "\t\t\t\t Enter The Base Number : ";
        cin >> num1;
        cout << "\t\t\t\t Enter The Power Number : ";
        cin >> num2;
        cout << "\t\t\t\t " << num1 << "^" << num2 << " = " << pow(num1, num2) << endl;
    }
    break;
    case (11):
    {
        system("CLS");
        cout << endl
             << endl
             << "\t\t\t\t Enter The Number : ";
        cin >> num1;
        cout << "\t\t\t\t "
             << " Cuber Root of " << num1 << " = " << cbrt(num1) << endl;
    }
    break;
    default:
    {
        system("CLS");
        cout << endl
             << endl
             << "\t\t\t\t\t WRONG ENTRY !!! " << endl
             << "\t\t\t\t\t Try Again " << endl
             << endl
             << "\t\t\t\t\t Loading ";
        for (int i = 0; i < 5; i++)
        {
            cout << " .";
            Sleep(1000);
        }
        goto again;
    }
    }

    Sleep(3000);

    int choice;
wrong_entry:
    system("CLS");
    cout << endl
         << endl
         << endl
         << "\t\t\t\t\t 1- Calculate Again" << endl;
    cout << "\t\t\t\t\t 2- Exit" << endl;
    cout << endl
         << "\t\t\t\t\t Enter your Choice : ";
    cin >> choice;

    if (choice == 1)
    {
        system("CLS");
        cout << endl
             << endl
             << "\t\t\t\t\t Loading ";
        for (int i = 0; i < 5; i++)
        {
            cout << " .";
            Sleep(1000);
        }
        goto again;
    }
    else if (choice > 2 || choice < 1)
    {
        system("CLS");
        cout << endl
             << endl
             << "\t\t\t\t WRONG ENTRY !!! " << endl
             << "\t\t\t\t Try Again " << endl
             << endl
             << "\t\t\t\t Loading ";
        for (int i = 0; i < 5; i++)
        {
            cout << " .";
            Sleep(1000);
        }
        goto wrong_entry;
    }
    else if (choice == 2)
    {
        system("CLS");
        cout << endl
             << endl
             << endl
             << endl
             << "\t\t\t\t\t\t Exiting ";
        for (int i = 0; i < 5; i++)
        {
            cout << " .";
            Sleep(1000);
        }
    }
}

double Factorial(double num1)
{
    if (num1 == 0 || num1 == 1)
    {
        return 1;
    }
    else
    {
        return num1 * Factorial(num1 - 1);
    }
}