import math
def add(x, y): return x + y
def sub(x, y): return x - y
def mul(x, y): return x * y
def div(x, y): return x / y
def sqrt(x): return math.sqrt(x)
def power(x, y): return math.pow(x, y)
print("Select Operation.") print("1. Addition") print("2. Subtraction") print("3. Multiplication") print("4. Division") print("5. Square Root") print("6. Power") print("E. Exit") print("R. Restart")
while True: choice = input("Enter Choice (1/2/3/4/5/6/E/R): ")
if choice in ('1', '2', '3', '4', '5', '6'):
num1 = float(input("Enter First Number: "))
num2 = float(input("Enter Second Number: "))
if choice == '1':
print(num1, "+", num2, "=", add(num1, num2))
elif choice == '2':
print(num1, "-", num2, "=", sub(num1, num2))
elif choice == '3':
print(num1, "*", num2, "=", mul(num1, num2))
elif choice == '4':
print(num1, "/", num2, "=", div(num1, num2))
elif choice == '5':
print("Square Root of", num1, "=", sqrt(num1))
print("Square Root of", num2, "=", sqrt(num2))
elif choice == '6':
print(num1, "to the power of", num2, "=", power(num1, num2))
elif choice.upper() == 'E':
confirm = input("Are you sure you want to exit? (Y/N): ")
if confirm.upper() == 'Y':
print("Exiting...")
break
elif confirm.upper() == 'N':
print("Select Operation.")
print("1. Addition")
print("2. Subtraction")
print("3. Multiplication")
print("4. Division")
print("5. Square Root")
print("6. Power")
print("E. Exit")
print("R. Restart")
else:
print("Invalid Input")
elif choice.upper() == 'R':
print("Restarting...")
print("Select Operation.")
print("1. Addition")
print("2. Subtraction")
print("3. Multiplication")
print("4. Division")
print("5. Square Root")
print("6. Power")
print("E. Exit")
print("R. Restart")
else:
print("Invalid Input")