Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
4th Edition
ISBN: 9780134444321
Author: Tony Gaddis
Publisher: PEARSON
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Chapter 4, Problem 8PE

Sum of Numbers

Write a program with a loop that asks the user to enter a series of positive numbers. The user should enter a negative number to signal the end of the series. After all the positive numbers have been entered, the program should display their sum.

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Chapter 4 Solutions

Starting Out with Python (4th Edition)

Ch. 4.3 - What will the following code display? for number... Ch. 4.3 - What will the following code display? for number... Ch. 4.4 - Prob. 13CP Ch. 4.4 - Should an accumulator be initialized to any... Ch. 4.4 - What will the following code display? total - 0... Ch. 4.4 - What will the following code display? number 1 =... Ch. 4.4 - Rewrite the following statements using augmented... Ch. 4.5 - Prob. 18CP Ch. 4.5 - Why should you take care to choose a distinctive... Ch. 4.6 - What does the phrase garbage in, garbage out mean? Ch. 4.6 - Give a general description of the input validation... Ch. 4.6 - Describe the steps that are generally taken when... Ch. 4.6 - Prob. 23CP Ch. 4.6 - If the input that is read by the priming read is... Ch. 4 - A_________-controlled loop uses a true/false... Ch. 4 - A _____-controlled loop repeats a specific number... Ch. 4 - Each repetition of a loop is known as a(n) a cycle... Ch. 4 - The while loop is a _______ type of loop. a.... Ch. 4 - A(n) ______ loop has no way of ending and repeats... Ch. 4 - The -= operator is an example of a(n) _________... Ch. 4 - Prob. 7MC Ch. 4 - A(n) ____________ is a special value that signals... Ch. 4 - Prob. 9MC Ch. 4 - The integrity of a programs output is only as good... Ch. 4 - The input operation that appears just before a... Ch. 4 - Validation loops are also known as _________. a.... Ch. 4 - A condition-controlled loop always repeats a... Ch. 4 - The while loop is a pretest loop. Ch. 4 - The following statement subtracts 1 from x: x = x ... Ch. 4 - It is not necessary to initialize accumulator... Ch. 4 - In a nested loop, the inner loop goes through all... Ch. 4 - To calculate the total number of iterations of a... Ch. 4 - The process of input validation works as follows:... Ch. 4 - What is a condition-controlled loop? Ch. 4 - What is a count-controlled loop? Ch. 4 - What is an infinite loop? Write the code for an... Ch. 4 - Why is it critical that accumulator variables are... Ch. 4 - What is the advantage of using a sentinel? Ch. 4 - Prob. 6SA Ch. 4 - What does the phrase garbage in, garbage out mean? Ch. 4 - Give a general description of the input validation... Ch. 4 - Write a while loop that lets the user enter a... Ch. 4 - Write a while loop that asks the user to enter two... Ch. 4 - Write a for loop that displays the following set... Ch. 4 - Write a loop that asks the user to enter a number.... Ch. 4 - Write a loop that calculates the total of the... Ch. 4 - Rewrite the following statements using augmented... Ch. 4 - Write a set of nested loops that display 10 rows... Ch. 4 - Write code that prompts the user to enter a... Ch. 4 - Write code that prompts the user to enter a number... Ch. 4 - Bug Collector The Bug Collector Problem A bug... Ch. 4 - Calories Burned Running on a particular treadmill... Ch. 4 - Budget Analysis Write a program that asks the user... Ch. 4 - Distance Traveled The distance a vehicle travels... Ch. 4 - Average Rainfall Write a program that uses nested... Ch. 4 - Celsius to Fahrenheit Table Write a program that... Ch. 4 - Pennies for Pay Write a program that calculates... Ch. 4 - Sum of Numbers Write a program with a loop that... Ch. 4 - Ocean Levels Assuming the ocean's level is... Ch. 4 - Tuition Increase At one college, the tuition for a... Ch. 4 - Weight Loss If a moderately active person cuts... Ch. 4 - Calculating the Factorial of a Number In... Ch. 4 - Population Write a program that predicts the... Ch. 4 - Prob. 14PE Ch. 4 - Prob. 15PE Ch. 4 - Turtle Graphics: Repeating Squares In this... Ch. 4 - Turtle Graphics: Star Pattern Use a loop with the... Ch. 4 - Turtle Graphics: Hypnotic Pattern Use a loop with... Ch. 4 - Turtle Graphics: STOP Sign In this chapter, you...

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