Python Programming - Lab- Core Lab 5 - Bsc CS DA -Bharathiar University - Program 11- Write a python program to make a simple calculator.

 

 B.Sc Computer Science with Data Analytics  

Python Programming - Lab

Core Lab 5  

Bharathiar University 

Program 11 - Write a python program to make a simple calculator.

SOURCE CODE:

# Function to add two numbers
def add(x, y):
    return x + y


# Function to subtract two numbers
def subtract(x, y):
    return x - y


# Function to multiply two numbers
def multiply(x, y):
    return x * y


# Function to divide two numbers
def divide(x, y):
    if y == 0:
        return "Error! Division by zero."
    return x / y


# Main function to perform calculations based on user input
def calculator():
    print("Simple Calculator")
    print("Operations: +, -, *, /")

    while True:
        # Get user input for operation and numbers
        operation = input("Enter operation (+, -, *, /) or 'exit' to quit: ")

        if operation.lower() == 'exit':
            break

        try:
            num1 = float(input("Enter first number: "))
            num2 = float(input("Enter second number: "))
        except ValueError:
            print("Invalid input! Please enter numbers.")
            continue

        # Perform calculation based on the chosen operation
        if operation == '+':
            print("Result:", add(num1, num2))
        elif operation == '-':
            print("Result:", subtract(num1, num2))
        elif operation == '*':
            print("Result:", multiply(num1, num2))
        elif operation == '/':
            print("Result:", divide(num1, num2))
        else:
            print("Invalid operation! Please enter +, -, *, or /.")


# Call the calculator function to run the calculator program
calculator()

OUTPUT:

Simple Calculator
Operations: +, -, *, /
Enter operation (+, -, *, /) or 'exit' to quit: +
Enter first number: 2
Enter second number: 5
Result: 7.0
Enter operation (+, -, *, /) or 'exit' to quit: -
Enter first number: 10
Enter second number: 2
Result: 8.0
Enter operation (+, -, *, /) or 'exit' to quit: *
Enter first number: 2
Enter second number: 3
Result: 6.0
Enter operation (+, -, *, /) or 'exit' to quit: /
Enter first number: 10
Enter second number: 5
Result: 2.0

Enter operation (+, -, *, /) or 'exit' to quit: =
Enter first number: 2
Enter second number: 3
Invalid operation! Please enter +, -, *, or /.
Enter operation (+, -, *, /) or 'exit' to quit: exit