Question 1

When calculating pi using the Wallis formula, the accumulator variable:

Accepted Answer

A)  must be initialized to zero. 
B)  is increased by two each iteration. 
C)  must be initialized to one. 
D)  is multiplied by two each iteration. 
A)  must be initialized to zero. 
B)  is increased by two each iteration. 
C)  must be initialized to one. 
D)  is multiplied by two each iteration.

Question 2

Case Study 1:
>>> import math
>>> numSides = 8
>>> innerAngleB = 360.0 / numSides
>>> halfAngleA = innerAngleB / 2
>>> oneHalfSideS = math.sin(math.radians(halfAngleA))
>>> sideS = oneHalfSideS * 2
>>> polygonCircumference = numSides * sideS
>>> pi = polygonCircumference / 2
>>> pi
3.0614674589207183
-Refer to the session in the accompanying case study 1. Which line uses the math module?

Accepted Answer

A)  innerAngleB = 360.0 / numSides 
B)  oneHalfSideS = math.sin(math.radians(halfAngle
A) ) 
C)  pi = polygonCircumference / 2 
D)  sideS = oneHalfsideS * 2 
A)  innerAngleB = 360.0 / numSides 
B)  oneHalfSideS = math.sin(math.radians(halfAngle
A) ) 
C)  pi = polygonCircumference / 2 
D)  sideS = oneHalfsideS * 2

Question 3

To create a drawing window, use the Screen constructor contained in the turtle module.

Accepted Answer

A) True 
 B)False

Question 4

How many times will the following print statement be executed?
>>> for sides in range(8, 100, 8):
Print(sides, archimedes(sides))

Accepted Answer

A)  1 
B)  8 
C)  12 
D)  16 
A)  1 
B)  8 
C)  12 
D)  16

Question 5

1. Match each definition with its term.
-True or False

Accepted Answer

A)  Boolean values 
B)  Selection statement 
C)  Logical operators 
D)  Relational expressions 
A)  Boolean values 
B)  Selection statement 
C)  Logical operators 
D)  Relational expressions

Question 6

The parameters passed to the print function are, by default, separated by a space when printed.

Accepted Answer

A) True 
 B)False

Question 7

Case Study 1:
>>> import math
>>> numSides = 8
>>> innerAngleB = 360.0 / numSides
>>> halfAngleA = innerAngleB / 2
>>> oneHalfSideS = math.sin(math.radians(halfAngleA))
>>> sideS = oneHalfSideS * 2
>>> polygonCircumference = numSides * sideS
>>> pi = polygonCircumference / 2
>>> pi
3.0614674589207183
-Refer to the session in the accompanying Case Study 1. Explain, in general terms, how to modify this series of statements in such a way that you would be able to change the number of sides and try the calculation again without needing to retype all of the statements.

Accepted Answer

One way to accomplish this is to use abs

Question 8

When using the Wallis function, the larger the value of the parameter passed into the function, the less accurate the result. Therefore, wallis(100) will be more accurate than wallis(10000).

Accepted Answer

A) True 
 B)False

Question 9

The ____ statement is used to terminate a function.

Accepted Answer

A)  return 
B)  exit 
C)  end 
D)  quit 
A)  return 
B)  exit 
C)  end 
D)  quit

Question 10

What is the name of the formula that calculates pi using the following equation?
π/4 = 1/1 - 1/3 + 1/5 - 1/7 + 1/9 …

Accepted Answer

A)  Archimedes approach 
B)  Leibniz formula 
C)  Wallis formula 
D)  Monte Carlo simulation 
A)  Archimedes approach 
B)  Leibniz formula 
C)  Wallis formula 
D)  Monte Carlo simulation

Question 11

Case Study 2:
>>> acc = 0
>>> for x in range(1, 6):
acc = acc + x
>>> acc
15
-Refer to the session in the accompanying case study 2. Which of the following is the initialization statement?

Accepted Answer

A)  acc 
B)  for x in range(1, 6): 
C)  acc = acc + x 
D)  acc = 0 
A)  acc 
B)  for x in range(1, 6): 
C)  acc = acc + x 
D)  acc = 0

Question 12

The ____ uses probability and random behavior to calculate pi.

Accepted Answer

A)  Archimedes approach 
B)  Leibniz formula 
C)  Wallis formula 
D)  Monte Carlo simulation 
A)  Archimedes approach 
B)  Leibniz formula 
C)  Wallis formula 
D)  Monte Carlo simulation

Question 13

Explain the term short-circuit evaluation of Boolean expressions. Use an example to illustrate what this means.

Accepted Answer

This means that Python evaluates only as

When calculating pi using the Wallis formula, the accumulator variable:

To create a drawing window, use the Screen constructor contained in the turtle module.

How many times will the following print statement be executed? >>> for sides in range(8, 100, 8): Print(sides, archimedes(sides))

1. Match each definition with its term. -True or False

The parameters passed to the print function are, by default, separated by a space when printed.

When using the Wallis function, the larger the value of the parameter passed into the function, the less accurate the result. Therefore, wallis(100) will be more accurate than wallis(10000).

The ____ statement is used to terminate a function.

What is the name of the formula that calculates pi using the following equation? π/4 = 1/1 - 1/3 + 1/5 - 1/7 + 1/9 …

Case Study 2: >>> acc = 0 >>> for x in range(1, 6): acc = acc + x >>> acc 15 -Refer to the session in the accompanying case study 2. Which of the following is the initialization statement?

The ____ uses probability and random behavior to calculate pi.

Explain the term short-circuit evaluation of Boolean expressions. Use an example to illustrate what this means.

Introduction to Python: Introduction to Numeric Types, Turtle Graphics, Simple for Loops and Functions

Codes and Other Secrets: String Operators and Methods, the Len Built-In Function, Keyword Parameters, User Input

Introducing the Python Collections: Lists, Dictionaries, Tuples, and Statistics

Bigger Data: File Io: the While Loop, String Formatting, Reading Online Data in CSV and Json Formats

Image Processing: Nested for Loops, Functions As Parameters, Namespaces, Lists of Lists

Data Mining: Cluster Analysis: More on the While Loop; Parrallel Lists

Cryptanalysis: Advanced Dictionaries and Lists, Regular Expressions

Fractals: the Geometry of Nature: Recursion, Grammars and Production Rules

Astronomy: Creating Classes, Writing Constructors, Accessors, Mutators and Special Methods

Simulation:computer Simulation Using Objects

Father Was a Rectangle: Inheritance and Object-Oriented Design

Video Games: Multithreading, Event Handlers, Static Variables

Filters

Exam 2: Pthon: Estimating PI: Math and Random Methods, Selection and Boolean Expressions, the Print Function

When calculating pi using the Wallis formula, the accumulator variable:

To create a drawing window, use the Screen constructor contained in the turtle module.

How many times will the following print statement be executed? >>> for sides in range(8, 100, 8): Print(sides, archimedes(sides))

1. Match each definition with its term. -True or False

The parameters passed to the print function are, by default, separated by a space when printed.

When using the Wallis function, the larger the value of the parameter passed into the function, the less accurate the result. Therefore, wallis(100) will be more accurate than wallis(10000).

The ____ statement is used to terminate a function.

What is the name of the formula that calculates pi using the following equation? π/4 = 1/1 - 1/3 + 1/5 - 1/7 + 1/9 …

Case Study 2: >>> acc = 0 >>> for x in range(1, 6): acc = acc + x >>> acc 15 -Refer to the session in the accompanying case study 2. Which of the following is the initialization statement?

The ____ uses probability and random behavior to calculate pi.

Explain the term short-circuit evaluation of Boolean expressions. Use an example to illustrate what this means.

Introduction to Python: Introduction to Numeric Types, Turtle Graphics, Simple for Loops and Functions

Codes and Other Secrets: String Operators and Methods, the Len Built-In Function, Keyword Parameters, User Input

Introducing the Python Collections: Lists, Dictionaries, Tuples, and Statistics

Bigger Data: File Io: the While Loop, String Formatting, Reading Online Data in CSV and Json Formats

Image Processing: Nested for Loops, Functions As Parameters, Namespaces, Lists of Lists

Data Mining: Cluster Analysis: More on the While Loop; Parrallel Lists

Cryptanalysis: Advanced Dictionaries and Lists, Regular Expressions

Fractals: the Geometry of Nature: Recursion, Grammars and Production Rules

Astronomy: Creating Classes, Writing Constructors, Accessors, Mutators and Special Methods

Simulation:computer Simulation Using Objects

Father Was a Rectangle: Inheritance and Object-Oriented Design

Video Games: Multithreading, Event Handlers, Static Variables

Filters