KISHAN BLOG

import math def add(x, y): return x + y def subtract(x, y): return x - y def multiply(x, y): return x * y def divide(x, y): if y == 0: return "Error! Division by zero." return x / y def power(x, y): return x ** y def square_root(x): if x < 0: return "Error! Negative number." return math.sqrt(x) def calculator(): print("Select operation:") print("1. Add") print("2. Subtract") print("3. Multiply") print("4. Divide") print("5. Power") print("6. Square Root") while True: choice = input("Enter choice (1/2/3/4/5/6): ") if choice in ['1', '2', '3', '4', '5', '6']: if choice in ['1', '2', '3', '4', '5']: num1 = float(input("Enter first number: ")) num2 = float(input("Enter second number: ")) if choice == '1': print(f"{num1} + {num2} = {add(num1, num2)}") elif choice == '2': print(f"{num1} - {num2} = {subtract(num1, num2)}") elif choice == '3': print(f"{num1} * {num2} = {multiply(num1, num2)}") elif choice == '4': print(f"{num1} / {num2} = {divide(num1, num2)}") elif choice == '5': print(f"{num1} ^ {num2} = {power(num1, num2)}") elif choice == '6': num = float(input("Enter number: ")) print(f"Square root of {num} = {square_root(num)}") else: print("Invalid input") next_calculation = input("Do you want to perform another calculation? (yes/no): ") if next_calculation.lower() != 'yes': break if __name__ == "__main__": calculator()