Question

Objectives

Work with functions

Assignment

Write each of the following functions using Python. The function header MUST be written as specified. In your main code test all of the specified functions. Each function must have a comment block explaining what it does, what the parameters are and what the return value is.

Please remember the following two guidelines:

• unless the purpose of the function is to generate output DO NOT write to the

  screen within the function

• unless the purpose of the function is to ask the user for a value DO NOT ask the

  user for a value within the function

  Required functions

  def inputWithinRange (lowValue, highValue):
  

  This function will ask for a number from the keyboard. The function will only return a value that is within the inclusive range of lowValue to highValue. If the entered value is not within the provided range, the function will ask again until the user has entered an acceptable value. The function will return the accepted value.

  def doContinue (prompt):
  This function will ask for a string using the prompt parameter. The function will returnTrue if the user enters an upper or lower case “yes” or False if the user enters an upper or lower case “no”. Any other entered value will cause the function to ask again until an acceptable value has been entered.

  def square (intValue):
  This function returns the square of intValue.

  def summation (intValue):
  This function returns the summation of 1 to intValue. You can assume thatintValue will be positive. For example, summation (5) would return 15 (1 + 2 + 3 + 4 + 5).

  def sumOfSquare (intValue):
  This function return the sum of the squares from 1 to intValue. For example,sumOfSquares(5) would return 55 (1 + 4 + 9 + 16 + 25). You MUST use a loop and the square function to determine the returned value.

  def factorial (intValue):
  This function returns the factorial of 1 to intValue. You can assume that intValuewill be positive. For example, factorial (5) would return 120 (1 * 2 * 3 * 4 * 5).

Answer 1

Code with indentation:

1 Function

7#function asks user 8#if not it will calL ask user to enter value and Loop 9 def inputWithRange ( lowVa lue, highValue) n int (input ("Enter value: ")) while(n>highValue or n<lowValue) n int (input ("Enter Value: ")) for input abd checks whether it in range or not runs until condition fails 1 .2 = 4 return n 6 print (inputWith Range (10,100)) # parameters taken 10, 100 for assumption un oN0

2 Function

function to check whether user entered yes or no 21 def doContinue (prompt): 20 # 22 if(prompt'YES' or prompt=='yes' ): 23 24 return True elif(prompt-='NO' or return False prompt'no'): 25 26 else: 27 prompt-input("Enter String") doContinue (prompt) 28 29 30 31 st-input("Enter string: ") 32 print (doContinue ( st)) 33

3,4&5 functions

33 34 # finds square 35 def square(intValue) 36 return intValue**2 37 print (square(4)) 38 39#finds summation of values till given value 40 def summation ( intValue) 41 sumtn-0 for i in range(1,intValue+1) 42 43 sumtn-sumtn+i 44 return sumtn print(summation(5)) 46 47#finds sumof square of values from 1 to given value 48 def sum0fsquare(intValue) 49 sumtn-0 for i in range (1, intValue+1): sumtn-sumtn+(i**2) 50 51 52 return sumtn 53 print (sumofsquare(5))

6th function

55#finds factorial of number 56 def factorial (intValue) fact=1 57 for i in range(1,intValue+1) fact-fact*i 58 59 60 return fact 61 print (factorial(5)) 62

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Outputs:

1st function output

Console 1/A In [12]: def inputWithRange (lowValue,highValue) n=int(input("Enter value: ")) while(n>highValue or n<lowValue) n=int(input("Enter Value: ")) return n ...: print(inputWith Range (10, 100) ) # parameters taken 10, 100 for assumption Enter value: 3 Enter Value: 1 Enter Value: 120 Enter Value: 23 23 In [13] Help Object Source Console

2nd function output

In [13] def doContinue (prompt): if (prompt=='YES' or prompt=='yes') return True elif(prompt==' NO' or prompt=='no'): return False else: prompt-input("Enter String") doContinue(prompt) ...: st-input("Enter string: ") ...: print(doContinue (st)) Enter string: no False In [14] Help Source Console Object

3rd function output

In [14] def square (intValue) return intValue*2 print (square (4)) 16 In [15]: Help Source Console Object

4th function output:

In [15] def summation (intValue) sumtn-0 for i in range(1,intValue+1) sumtn-sumtn+i return sumtn print(summation (5)) 15 In [16] Help

5th function output

In [16] def sumOfsquare (intValue) sumtn-0 for i in range(1,intValue+1) sumtn sumtn+(i**2) return sumtn ..: print(sumofsquare (5)) 55 In [17]: Help Source Console Object

6th function output:

In [17]: def factorial(intValue): fact-1 for i in range (1, intValue+1): fact-fact*i return fact print(factorial(5)) 120 In [18] Help Source Console Object

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