Starting Out with Python (4th Edition)
4th Edition
ISBN: 9780134444321
Author: Tony Gaddis
Publisher: PEARSON
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Chapter 12, Problem 6PE
Program Plan Intro
Sum of Numbers
- • Define the “main()” function:
- ○ Initialize the variable “number” as “0”.
- ○ Check the value of “number”.
- ■ If it is less than or equal to “0”, then get the input from the user and store it to the variable “number”.
- ○ Call the function “sumNumbers()” and pass the argument “num”.
- ○ Display the result on the output screen.
- • Define the “sumNumbers(num)” function:
- ○ Check the value of “num”.
- ■ If it is equal to “0”, then return “num”
- ■ Otherwise, call the function “sumNumbers()” to recursively perform the addition operation.
- ○ Check the value of “num”.
- • Call the “main()” function.
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6. Sum of Numbers
Design a function that accepts an integer argument and returns the sum of all the integers from 1 up to the number passed as an argument. For example, if 50 is passed as an argument, the function will return the sum of 1, 2, 3, 4, . . . 50. Use recursion to calculate the sum.
6. Sum of Numbers
Design a function that accepts an integer argument and returns the sum of all the integers from 1 up to the number passed as an argument. For example, if 50 is passed as an argument, the function will return the sum of 1, 2, 3, 4, . . . 50. Use recursion to calculate the sum.
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Design a recursive function that accepts two arguments into the parameters x and y. The function should return the value of x times y. Remember, multiplication can be performed as repeated addition as follows:
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Chapter 12 Solutions
Starting Out with Python (4th Edition)
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