C-Calculator

A simple command-line calculator that performs basic arithmetic operations (addition, subtraction, multiplication, division). This program is written in C and demonstrates the use of conditional statements and user input handling.

Preview

Compilation and Execution

1. To check whether MinGW is recognized by your system, use the following command:

   gcc -v
   

2. use the play button in the top right corner to run and debug the code.

3. To compile the game, use the following command:

   gcc -o Calculator Calculator.c
   

   To run the compiled program:

   ./Calculator
   

   If you encounter any issues setting up MinGW on Windows, refer to this guide: How to run a C program in Visual Studio Code

Example Input and Output

1. Addition (+):

   Input:

   Enter an operator (+, -, *, /): +
   Enter the first number: 2
   Enter the second number: 3
   

   Output:

   2.00 + 3.00 = 5.00
   

2. Subtraction (-):

   Input:

   Enter an operator (+, -, *, /): -
   Enter the first number: 5.5
   Enter the second number: 2.2
   

   Output:

   5.50 - 2.20 = 3.30
   

3. Multiplication (*):

   Input:

   Enter an operator (+, -, *, /): *
   Enter the first number: 4
   Enter the second number: 2.5
   

   Output:

   4.00 * 2.50 = 10.00
   

4. Division (/), Valid Division

   Input:

   Enter an operator (+, -, *, /): /
   Enter the first number: 10
   Enter the second number: 2
   

   Output:

   10.00 / 2.00 = 5.00
   

5. Division (/), Division by Zero

   Input:

   Enter an operator (+, -, *, /): /
   Enter the first number: 10
   Enter the second number: 0
   

   Output:

   Error! Division by zero.
   

6. Invalid Operator

   Input:

   Enter an operator (+, -, *, /): %
   Enter the first number: 10
   Enter the second number: 2
   

   Output:

   Invalid operator!   
   

Dependencies

Standard C library:

• MinGW
• C/C++