calculator/app.py at master · StudentTraineeCenter/calculator · GitHub

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def add(a, b):
    return a + b

def subtract(a, b):
    return a - b

def multiply(a, b):
    return a * b

def divide(a, b):
    if b != 0:
        return a / b
    else:
        return "Division by zero error"

def main():
    print("Simple Python Calculator")
    a = float(input("Enter first number: "))
    b = float(input("Enter second number: "))
    operation = input("Enter operation (+, -, *, /): ")

    if operation == '+':
        print(f"Result: {add(a, b)}")
    elif operation == '-':
        print(f"Result: {subtract(a, b)}")
    elif operation == '*':
        print(f"Result: {multiply(a, b)}")
    elif operation == '/':
        print(f"Result: {divide(a, b)}")
    else:
        print("Invalid operation")

if __name__ == "__main__":
    main()