Program to Perform Calculator Function.

1. def add(n1, n2):
2.     return n1 + n2
3. 
   
4. 
   
5. def subtract(n1, n2):
6.     return n1 - n2
7. 
   
8. 
   
9. def multiply(n1, n2):
10.     return n1 * n2
11. 
    
12. 
    
13. def divide(n1, n2):
14.     return n1 / n2
15. 
    
16. 
    
17. def sqaure_root(num1):
18.     n = num1 ** 0.5
19.     print(f"Current Result : {round(n, 1)} \n End of calculation")
20. 
    
21. 
    
22. def sqaure(num1):
23.     n = num1 ** 2
24.     print(f"Current Result : {round(n, 1)} \n End of calculation")
25. 
    
26. 
    
27. def display():
28.     print(" + \n - \n * \n / \n Square Root(sr) for one value \n Sqaure(s) for one value\n ")
29. 
    
30. 
    
31. op_list = ['+', '-', '*', '/', 's', 'sr']
32. 
    
33. 
    
34. def calculation_operation():
35.     num1 = int(input(" Enter a First number : "))
36.     display()
37.     def further(num1):
38.         flag = True
39.         while flag:
40.             op = input(" Choose operator from above : ")
41.             if op == 's':
42.                 sqaure(num1)
43.                 break
44.             elif op == 'sr':
45.                 sqaure_root(num1)
46.                 break
47.             num2 = int(input(" Enter next number : "))
48.             result = 0
49.             if op == '+':
50.                 result = add(num1, num2)
51.             elif op == '-':
52.                 result = subtract(num1, num2)
53.             elif op == '*':
54.                 result = multiply(num1, num2)
55.             elif op == '/':
56.                 result = divide(num1, num2)
57.             else:
58.                 print("You Select Wrong Option")
59.                 break
60.             if input(f" Do you want to continue [ {round(result, 1)} ] as result? (y \ n) : ").lower() == 'y':
61.                 print(f" Current Result : {round(result, 1)} \n End of calculation")
62.                 flag = False
63.             else:
64.                 n1 = result
65.                 further(n1)
66. 
    
67.     further(num1)
68. 
    
69. 
    
70. print(" Program to perform Calculator Operations\n")
71. print('\n-----------------------------------------\n')
72. calculation_operation()
73.  

Output :