Starting Out with Python (3rd Edition)
3rd Edition
ISBN: 9780133582734
Author: Tony Gaddis
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 2PE
Sales Prediction
A company has determined that its annual profit is typically 23 percent of total sales. Write a
The Sales Prediction Problem
Hint: Use the value 0.23 to represent 23 percent.
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Students have asked these similar questions
Given the C++ code below, create a TM that performs the same operation, i.e., given an input
over the alphabet Σ= {a, b} it prints the number of letters b in binary.
1 #include
2 #include
3
4- int main() {
std::cout > str;
for (char c : str) {
if (c == 'b')
count++;
5
std::string str;
6
int count = 0;
7
char buffer [1000];
8
9
10
11-
12
13
14
}
15
16-
17
18
19
}
20
21
22}
std::string binary
while (count > 0) {
binary = std::to_string(count % 2) + binary;
count /= 2;
std::cout << binary << std::endl;
return 0;
Considering the CFG described below, answer the following questions.
Σ = {a, b}
• NT = {S}
Productions:
P1 S⇒aSa
P2
P3
SbSb
S⇒ a
P4 S⇒ b
A. List one sequence of productions that can accept the word abaaaba;
B. Give three 5-letter words that can be accepted by this CFG;
C. Create a Pushdown automaton capable of accepting the language accepted by this CFG.
Given the FSA below, answer the following questions.
b
1
3
a
a
b
b
с
2
A. Write a RegEx that is equivalent to this FSA as it is;
B. Write a RegEx that is equivalent to this FSA removing the states and edges
corresponding to the letter c.
Note: To both items feel free to use any method you want, including analyzing which words are
accepted by the FSA, to generate your RegEx.
Chapter 2 Solutions
Starting Out with Python (3rd Edition)
Ch. 2.1 - Who is a programmers customer?Ch. 2.1 - What is a software requirement?Ch. 2.1 - What is an algorithm?Ch. 2.1 - What is pseudocode?Ch. 2.1 - Prob. 5CPCh. 2.1 - Prob. 6CPCh. 2.3 - Write a statement that displays your name.Ch. 2.3 - Write a statement that displays the following...Ch. 2.3 - Write a statement that displays the following...Ch. 2.5 - Prob. 10CP
Ch. 2.5 - Which of the following are illegal variable names...Ch. 2.5 - Prob. 12CPCh. 2.5 - Is the following assignment statement valid or...Ch. 2.5 - Prob. 14CPCh. 2.5 - Look at the following assignment statements:...Ch. 2.5 - What will be displayed by the following program?...Ch. 2.6 - You need the user of a program to enter a...Ch. 2.6 - Prob. 18CPCh. 2.7 - Prob. 19CPCh. 2.7 - Prob. 20CPCh. 2.7 - Prob. 21CPCh. 2 - A ______ error does not prevent the program from...Ch. 2 - Prob. 2MCCh. 2 - A(n) __________ is a set of well-defined logical...Ch. 2 - An Informal language that has no syntax rules and...Ch. 2 - A _______ is a diagram that graphically depicts...Ch. 2 - A ______ is a sequence of characters. a. char...Ch. 2 - Prob. 7MCCh. 2 - Prob. 8MCCh. 2 - A string literal in Python must be enclosed in...Ch. 2 - Prob. 10MCCh. 2 - A(n) __________ makes a variable reference a value...Ch. 2 - This symbol marks the beginning of a comment in...Ch. 2 - Which of the following statements will cause an...Ch. 2 - In the expression 12 + 7, the values on the right...Ch. 2 - This operator performs integer division. a. // b....Ch. 2 - This is an operator that raises a number to a...Ch. 2 - This operator performs division, but instead of...Ch. 2 - Prob. 18MCCh. 2 - Which built-in function can be used to read input...Ch. 2 - Prob. 20MCCh. 2 - Programmers must be careful not to make syntax...Ch. 2 - In a math expression, multiplication and division...Ch. 2 - Variable names can have spaces in them.Ch. 2 - In Python, the first character of a variable name...Ch. 2 - If you print a variable that has not been assigned...Ch. 2 - What does a professional programmer usually do...Ch. 2 - What is pseudocode?Ch. 2 - Computer programs typically perform what three...Ch. 2 - If a math expression adds a float to an int, what...Ch. 2 - What is the difference between floating-point...Ch. 2 - Write Python code that prompts the user to enter...Ch. 2 - Write Python code that prompts the user to enter...Ch. 2 - Write assignment statements that perform the...Ch. 2 - Assume the variables result, w, x, y, and z are...Ch. 2 - Write a Python statement that assigns the sum of...Ch. 2 - Write a Python statement that subtracts the...Ch. 2 - Write a Python statement that multiplies the...Ch. 2 - Prob. 8AWCh. 2 - What would the following display? num = 99 num = 5...Ch. 2 - Assume the variable sales references a float...Ch. 2 - Assume the following statement has been executed:...Ch. 2 - What will the following statement display?...Ch. 2 - Personal Information Write a program that displays...Ch. 2 - Sales Prediction A company has determined that its...Ch. 2 - Land Calculation One acre of land is equivalent to...Ch. 2 - Total Purchase A customer in a store is purchasing...Ch. 2 - Distance Traveled Assuming there are no accidents...Ch. 2 - Sales Tax Write a program that will ask the user...Ch. 2 - Miles-per-Gallon A car's miles-per-gallon (MPG)...Ch. 2 - Tip, Tax, and Total Write a program that...Ch. 2 - Celsius to Fahrenheit Temperature Converter Write...Ch. 2 - Ingredient Adjuster A cookie recipe calls for the...Ch. 2 - Male and Female Percentages Write a program that...Ch. 2 - Stock Transaction Program Last month, Joe...
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