Question

1. Prompt the user for one of the arithmetic operators ('op'): +, -, *,/, or ** 2. Prompt the user for two input integers ('a' and'b') 3. The input numbers can be positive or negative 4. Perform the arithmetic operation using the two input numbers 5. The first entered number ('a') is the left side, the second ('b') the right side of the operation For exponentiation, the first number is the base, the second the exponent Print (display) the following messages (but not the quotes), including the prompts Start of Calculator Program" "Enter the desired operation (+,-, *, /, **): "Enter the input number: " "Enter the second input number: “ “<print the calculation>-<result> " "End of Calculator Program" 6. <-this įs a user prompt “ <-also a user prompt user prompt The input operations are expected to be in the set {+,-, *、**). After the prompt, check to be sure hey are one of those. Print (display) an error message if they are not and do not prompt the user for he numbers. The program ends. The input numbers are expected to be integers. Casting the inputs as int' will result in an error if a non-integer is entered. If that happens, a program exception occurs and he program ends n displaying "<print the calculation> -<result>", use the following examples as a guide (the output hould look like the example sin the second column) Calculation (op, a, b +, 12, 9 The print (displav) output: <print the calculation<result> 12 +9-21 18-26--8 25 * 6 150 96/ 32 = 3.0 5**3- 125 18, 26 *, 25, 6 /, 96, 32 Don't worry about the exact spacing and formatting of the output numbers. The floating point umbers, for example, might have more digits to the right of the decimal point. We'll learn how to

Answer 1

"Printf(""start of calculator program"") operator = input(""Enter the desired operation(+, -, *&, /, **): "") a = int(input(""enter the input number: "")) b = int(input(""Enter the second input number: "")) if operator == '+': print(a, ""+"", b, ""+"", (a +b)) elif operator == '-': print(a, ""-"",b, ""-"", (a -b)) elif operator == '*': print(a, ""x"", b, ""="", (a * b)) elif operator =='/': print(a, ""/"", b, ""="", (a/b)) elif operator == '**': printf(a, ""**"", b, ""="", (a ** b)) else: print(: Error1 invalid operator"") print(""End of calculator program"") Start of Calculator Program Enter the desired operation Enter the input number: 12 Enter the second input number: 9 12 + 9 = 21 End of Calculator Program"

Output :