Com S 127x - Lab 6 1. READING FLOWCHARTS WITH CONDITIONAL ACTIONS!
|
|
- Barry Barnett
- 5 years ago
- Views:
Transcription
1 Com S 127x - Lab 6 1. READING FLOWCHARTS WITH CONDITIONAL ACTIONS! The U.S. Postal Service has some complex rules for deciding how much it costs to mail a letter. We ll use a small part of these rules as an example of writing conditional statements. The rule is as follows: Rule 1: For an ordinary letter up to 3.5 ounces, the cost is.49 for the first ounce plus.22 for each additional ounce (or part of an ounce). Try some examples: A letter that is 1 ounce (or less) is just.49. For a 2.3 ounce letter, the cost is *.22 =.93(.49 for the first ounce and for the remaining 1.3 ounce it is 2 *.22) For a 3 ounce letter the cost is also *.22 =.93 For a 3.1 ounce letter the cost is *.22 = 1.15 The process above could be described in pseudocode something like this: if the weight is less than or equal to 1.0 cost is.49 else subtract 1 from the weight, round up to the next whole number, and multiply by.22 add the result to.49 To translate this into Python code, we need to be able to take a float value and round "up" to the next whole number. Fortunately there is a function in the math module, called ceil() (short for ceiling ) that does exactly what we want. Try this: >>> import math >>> math.ceil(2.3) 3.0 >>> math.ceil(3.0) 3.0 >>> math.ceil(3.1) 4.0 So here is an example of a Python function that returns the postage for a given weight up to 3.5 ounces. (To try this in a script, remember to import the math module.) def postage(weight): if weight <= 1.0: else: + math.ceil(weight - 1) *.22
2 Now, to make things more interesting, let's add the rule for letters over 3.5 ounces: Rule 2: For letters over 3.5 ounces, the cost is.98 for the first ounce plus.22 for each additional ounce (or part of an ounce). For example, a 3.5 ounce letter would cost.49 + (3 *.22) = 1.15 [From rule 1] a 3.8 ounce letter would cost.98 + (3 *.22) = 1.64 [From rule 2] a 10 ounce letter would cost.98 + (9 *.22) = 2.96 [From rule 2] Now to calculate the charges for letter of any weight, you will have to make use of both the rules and calculate the charges. Notice you have to check the actual weight to see if it is bigger than 3.5, but then round up when you compute the extra ounces. Let us try to capture the above rules in a flowchart. Figures 1, 2, and 3 are flowcharts representing different attempts to program the rules above. They are not necessarily correct! Exercise 1 Trace through each flowchart by hand using some sample values as in the examples above. Decide which flowcharts are correct and which are incorrect. For each one that is incorrect, give a specific example in which the wrong answer is produced. Show the TA what you concluded. WRITING CONDITIONAL STATEMENTS; USING A UNIT TEST Now, for each flowchart, write a Python function that implements it. The function should be named postage and should have one parameter representing the weight. The function should return the postal charge calculated. Put the three functions in three separate files called postage1.py, postage2.py, and postage3.py. To test your functions, download the module postage_test.py from This is an example of a unit test.
3 WHAT IS A UNIT TEST It is just a short script that calls the postage() function multiple times with different values, so you can check the results. To make it easier to check the results, the expected (correct) result is printed after function is called. You can choose which version of the function is being tested by editing the import statement at the top. Verify that the results agree with your conclusions from reading the flowcharts. (Remember, agreeing with the flowchart does not necessarily mean it gives correct answers!) Reminders: 1. Your modules need to be in the same directory as the postage_test script in order to be imported. 2. Remember that Python uses indentation to determine which statements are grouped together, so watch the indentation levels carefully. For example, here is yet another version of a postagecalculating function (one that does not match any of the flowcharts) that has another conditional statement nested inside the else statement block: def postage(weight): if weight > 3.5: cost =.98 + math.ceil(weight - 1) *.22 else: if weight > 1: cost = cost + math.ceil(weight - 1) *.22 Indentation level for inner if block Indentation level for outer if and else blocks Indentation level for function body Exercise 2 Show the TA your three modules and the results of running the unit test on each version. Note that when you start testing you might see values like: for the postage on a 3 ounce letter. Why do we get that weird-looking number instead of just.93
4 Well, floating-point arithmetic is never exact, so we are seeing the natural result of rounding errors. All we can do here is mentally round the result to the nearest cent. (An alternative would be to do all calculations in pennies using integer arithmetic.) Start weight <= 1 weight <= ceil(weight 1) *.22 cost =.98 + ceil(weight 1) *.22 Figure 1
5 Start weight <= 1 weight > 1 + ceil(weight 1) *.22 weight > 3.5 cost =.98 + ceil(weight 1) *.22 + ceil(weight 1) *.22 Figure 2
6 Start cost = cost + ceil(weight 1) *.22 weight > 1 cost = cost +.49 weight > 3.5 Figure 3 CREATING A FLOWCHART FROM A PROBLEM STATEMENT Now we are going to construct a flowchart for a problem. The problem statement is as follows: Normally, labor laws require that employees who are paid an hourly wage have to be paid extra whenever they work more than 40 hours per week. The extra is usually 1½ times the regular hourly wage for all hours above 40. However, an exception is made for employees with exempt status, which is meant for positions such as managers and supervisors. They don t get paid any extra for overtime.
7 Work out the examples below using a pencil and paper, and make sure you get the results shown: hours, rate $10.00 per hour, non-exempt : total wages $ hours, rate $10.00 per hour, exempt : total wages $ hours, rate $10.00 per hour, non-exempt : total wages $ hours, rate $10.00 per hour, exempt : total wages $440 Next, sketch a flowchart representing the calculation. Assume that you have three variables, the hours, the hourly rate, and the status (assume the status is either the string exempt or the string non-exempt ). Finally, implement a Python function that has three parameters (again the hours, the hourly rate, and the status) that prints the total wages. Also write a short unit test for it similar to postage_test.py, based on the four sample calculations above. You should print what arguments are being tested, the expected result, and then the result you get from actually calling the function. Exercise 3 Show your flowchart and demonstrate your Python function to the TA.
(I m not printing out these notes! Take your own.)
PT1420 Week 2: Software Program Design I (I m not printing out these notes! Take your own.) Today we'll be discussing designing programs: Algorithms and errors Flowcharts and pseudocode Sequence structures
More informationUsing IDLE for
Using IDLE for 15-110 Step 1: Installing Python Download and install Python using the Resources page of the 15-110 website. Be sure to install version 3.3.2 and the correct version depending on whether
More informationUse the Associative Property of Multiplication to find the product.
3-1 1. The Associative Property of Multiplication states factors can be grouped differently and the product remains the same. Changing the grouping of the factors changes the factors that are multiplied
More informationCMSC 201 Fall 2018 Lab 04 While Loops
CMSC 201 Fall 2018 Lab 04 While Loops Assignment: Lab 04 While Loops Due Date: During discussion, September 24 th through September 27 th Value: 10 points (8 points during lab, 2 points for Pre Lab quiz)
More informationRev Name Date. . Round-off error is the answer to the question How wrong is the rounded answer?
Name Date TI-84+ GC 7 Avoiding Round-off Error in Multiple Calculations Objectives: Recall the meaning of exact and approximate Observe round-off error and learn to avoid it Perform calculations using
More informationIntro to Programming. Unit 7. What is Programming? What is Programming? Intro to Programming
Intro to Programming Unit 7 Intro to Programming 1 What is Programming? 1. Programming Languages 2. Markup vs. Programming 1. Introduction 2. Print Statement 3. Strings 4. Types and Values 5. Math Externals
More informationTo become familiar with array manipulation, searching, and sorting.
ELECTRICAL AND COMPUTER ENGINEERING 06-88-211: COMPUTER AIDED ANALYSIS LABORATORY EXPERIMENT #2: INTRODUCTION TO ARRAYS SID: OBJECTIVE: SECTIONS: Total Mark (out of 20): To become familiar with array manipulation,
More informationReview. Input, Processing and Output. Review. Review. Designing a Program. Typical Software Development cycle. Bonita Sharif
Input, Processing and Output Bonita Sharif 1 Review A program is a set of instructions a computer follows to perform a task The CPU is responsible for running and executing programs A set of instructions
More informationPython lab session 1
Python lab session 1 Dr Ben Dudson, Department of Physics, University of York 28th January 2011 Python labs Before we can start using Python, first make sure: ˆ You can log into a computer using your username
More informationCS1 Lecture 3 Jan. 22, 2018
CS1 Lecture 3 Jan. 22, 2018 Office hours for me and for TAs have been posted, locations will change check class website regularly First homework available, due Mon., 9:00am. Discussion sections tomorrow
More informationText Input and Conditionals
Text Input and Conditionals Text Input Many programs allow the user to enter information, like a username and password. Python makes taking input from the user seamless with a single line of code: input()
More informationExcerpt from "Art of Problem Solving Volume 1: the Basics" 2014 AoPS Inc.
Chapter 5 Using the Integers In spite of their being a rather restricted class of numbers, the integers have a lot of interesting properties and uses. Math which involves the properties of integers is
More informationIDENTIFY WAYS OF REPRESENTING ALGORITHMS.
IDENTIFY WAYS OF REPRESENTING ALGORITHMS. OBJECTIVES: Identify ways of representing algorithms: Content Representation of algorithms as Pseudocode or Flowcharts; use of flow chart symbols: input/output
More informationCMSC 201 Spring 2017 Lab 12 Recursion
CMSC 201 Spring 2017 Lab 12 Recursion Assignment: Lab 12 Recursion Due Date: During discussion, May 1st through May 4th Value: 10 points (8 points during lab, 2 points for Pre Lab quiz) This week s lab
More informationDownloaded from Chapter 2. Functions
Chapter 2 Functions After studying this lesson, students will be able to: Understand and apply the concept of module programming Write functions Identify and invoke appropriate predefined functions Create
More information15-110: Principles of Computing, Spring 2018
15-110: Principles of Computing, Spring 2018 Programming Assignment 3 Due: Tuesday, February 6 by 9PM Note: You are responsible for protecting your solutions to the following problems from being seen by
More informationCS1 Lecture 5 Jan. 26, 2018
CS1 Lecture 5 Jan. 26, 2018 HW1 due Monday, 9:00am. Notes: Do not write all the code at once (for Q1 and 2) before starting to test. Take tiny steps. Write a few lines test... add a line or two test...
More informationPIETRO, GIORGIO & MAX ROUNDING ESTIMATING, FACTOR TREES & STANDARD FORM
PIETRO, GIORGIO & MAX ROUNDING ESTIMATING, FACTOR TREES & STANDARD FORM ROUNDING WHY DO WE ROUND? We round numbers so that it is easier for us to work with. We also round so that we don t have to write
More informationPython for Non-programmers
Python for Non-programmers A Gentle Introduction 1 Yann Tambouret Scientific Computing and Visualization Information Services & Technology Boston University 111 Cummington St. yannpaul@bu.edu Winter 2013
More informationChapter 2 Input, Processing and Output. Hong Sun COSC 1436 Spring 2017 Jan 30, 2017
Chapter 2 Input, Processing and Output Hong Sun COSC 1436 Spring 2017 Jan 30, 2017 Designing a Program Designing a Program o Programs must be carefully designed before they are written. Before beginning
More informationCS1 Lecture 3 Jan. 18, 2019
CS1 Lecture 3 Jan. 18, 2019 Office hours for Prof. Cremer and for TAs have been posted. Locations will change check class website regularly First homework assignment will be available Monday evening, due
More informationT H E I N T E R A C T I V E S H E L L
3 T H E I N T E R A C T I V E S H E L L The Analytical Engine has no pretensions whatever to originate anything. It can do whatever we know how to order it to perform. Ada Lovelace, October 1842 Before
More informationCS1 Lecture 5 Jan. 25, 2019
CS1 Lecture 5 Jan. 25, 2019 HW1 due Monday, 9:00am. Notes: Do not write all the code at once before starting to test. Take tiny steps. Write a few lines test... add a line or two test... add another line
More informationUNIVERSITY OF CALIFORNIA, SANTA CRUZ BOARD OF STUDIES IN COMPUTER ENGINEERING
UNIVERSITY OF CALIFORNIA, SANTA CRUZ BOARD OF STUDIES IN COMPUTER ENGINEERING CMPE13/L: INTRODUCTION TO PROGRAMMING IN C SPRING 2012 Lab 3 Matrix Math Introduction Reading In this lab you will write a
More informationCCBC Math 081 Order of Operations Section 1.7. Step 2: Exponents and Roots Simplify any numbers being raised to a power and any numbers under the
CCBC Math 081 Order of Operations 1.7 1.7 Order of Operations Now you know how to perform all the operations addition, subtraction, multiplication, division, exponents, and roots. But what if we have a
More informationLab 4: Strings/While Loops Due Sun, Apr 17 at midnight
Lab 4: Strings/While Loops Due Sun, Apr 17 at midnight For this lab, you must work with a partner. You should choose a new partner. Remember to turn in your peer review. All functions should be commented
More informationIntroduction to Programming in Turing. Input, Output, and Variables
Introduction to Programming in Turing Input, Output, and Variables The IPO Model The most basic model for a computer system is the Input-Processing-Output (IPO) Model. In order to interact with the computer
More informationSECTION 3. ROUNDING, ESTIMATING, AND USING A CALCULATOR
SECTION 3. ROUNDING, ESTIMATING, AND USING A CALCULATOR Exact numbers are not always necessary or desirable. Sometimes it may be necessary to express the number which is a result of a calculation to a
More informationBRANCHING if-else statements
BRANCHING if-else statements Conditional Statements A conditional statement lets us choose which statement t t will be executed next Therefore they are sometimes called selection statements Conditional
More informationDecisions, Decisions. Testing, testing C H A P T E R 7
C H A P T E R 7 In the first few chapters, we saw some of the basic building blocks of a program. We can now make a program with input, processing, and output. We can even make our input and output a little
More informationProgramming with Python
Programming with Python Dr Ben Dudson Department of Physics, University of York 21st January 2011 http://www-users.york.ac.uk/ bd512/teaching.shtml Dr Ben Dudson Introduction to Programming - Lecture 2
More informationComputer Programming. Basic Control Flow - Loops. Adapted from C++ for Everyone and Big C++ by Cay Horstmann, John Wiley & Sons
Computer Programming Basic Control Flow - Loops Adapted from C++ for Everyone and Big C++ by Cay Horstmann, John Wiley & Sons Objectives To learn about the three types of loops: while for do To avoid infinite
More informationUnit 7: Algorithms and Python CS 101, Fall 2018
Unit 7: Algorithms and Python CS 101, Fall 2018 Learning Objectives After completing this unit, you should be able to: Identify whether a sequence of steps is an algorithm in the strict sense. Explain
More informationPart 6b: The effect of scale on raster calculations mean local relief and slope
Part 6b: The effect of scale on raster calculations mean local relief and slope Due: Be done with this section by class on Monday 10 Oct. Tasks: Calculate slope for three rasters and produce a decent looking
More informationCMSC201 Computer Science I for Majors
CMSC201 Computer Science I for Majors Lecture 05 Algorithmic Thinking Last Class We Covered Decision structures One-way (using if) Two-way (using if and else) Multi-way (using if, elif, and else) Nested
More informationQuestion 1. Part (a) Simple Syntax [1 mark] Circle add_ints(), because it is missing arguments to the function call. Part (b) Simple Syntax [1 mark]
Note to Students: This file contains sample solutions to the term test together with the marking scheme and comments for each question. Please read the solutions and the marking schemes and comments carefully.
More informationCpSc 111 Lab 5 Conditional Statements, Loops, the Math Library, and Redirecting Input
CpSc Lab 5 Conditional Statements, Loops, the Math Library, and Redirecting Input Overview For this lab, you will use: one or more of the conditional statements explained below scanf() or fscanf() to read
More informationMath 6 Notes Unit 03 Notes: Decimals
Math 6 Notes Unit 03 Notes: Decimals Reading and Writing Decimals Syllabus Objective: (3.2) The student will translate written forms of fractions, decimals, and percents to numerical form. Decimals are
More informationCpSc 1111 Lab 6 Conditional Statements, Loops, the Math Library, and Random Numbers What s the Point?
CpSc 1111 Lab 6 Conditional Statements, Loops, the Math Library, and Random Numbers What s the Point? Overview For this lab, you will use: one or more of the conditional statements explained below scanf()
More informationFOIA Request made by: Name: Address: Telephone: Request made on date: Library received request on date: Library staff who received request:
FOIA Request made by: FOIA REQUEST RESPONSE AND DETAILED COST ITEMIZATION January 2019 Library: Keep original and provide copies of both sides of each sheet, along with Public Summary, to requestor at
More informationInteger Multiplication and Division
Integer Multiplication and Division for ENCM 369: Computer Organization Steve Norman, PhD, PEng Electrical & Computer Engineering Schulich School of Engineering University of Calgary Winter Term, 208 Integer
More informationcs1114 REVIEW of details test closed laptop period
python details DOES NOT COVER FUNCTIONS!!! This is a sample of some of the things that you are responsible for do not believe that if you know only the things on this test that they will get an A on any
More informationReal Numbers. Rational Numbers (0, 3, -1, ½⅔,.524, etc..) Fractions (1/2, -4/3, 10%,.25, etc..) Negative Integers {.
All Numbers in the Universe Real Numbers Imaginary Numbers 1, etc.. Rational Numbers (0, 3, -1, ½⅔,.524, etc..) Irrational Numbers, 2, 3, etc.. Integers (.-3,-2,-1,0,1,2,3..) Fractions (1/2, -4/3, %,.25,
More informationComputer Science & Engineering 150A Problem Solving Using Computers. Chapter 5. Repetition in Programs. Notes. Notes. Notes. Lecture 05 - Loops
Computer Science & Engineering 150A Problem Solving Using Computers Lecture 05 - Loops Stephen Scott (Adapted from Christopher M. Bourke) 1 / 1 Fall 2009 cbourke@cse.unl.edu Chapter 5 5.1 Repetition in
More informationCMSC 201 Spring 2017 Lab 05 Lists
CMSC 201 Spring 2017 Lab 05 Lists Assignment: Lab 05 Lists Due Date: During discussion, February 27th through March 2nd Value: 10 points (8 points during lab, 2 points for Pre Lab quiz) This week s lab
More informationLecture Notes for Chapter 2: Getting Started
Instant download and all chapters Instructor's Manual Introduction To Algorithms 2nd Edition Thomas H. Cormen, Clara Lee, Erica Lin https://testbankdata.com/download/instructors-manual-introduction-algorithms-2ndedition-thomas-h-cormen-clara-lee-erica-lin/
More information6.S189 Homework 2. What to turn in. Exercise 3.1 Defining A Function. Exercise 3.2 Math Module.
6.S189 Homework 2 http://web.mit.edu/6.s189/www/materials.html What to turn in Checkoffs 3, 4 and 5 are due by 5 PM on Monday, January 15th. Checkoff 3 is over Exercises 3.1-3.2, Checkoff 4 is over Exercises
More informationFLOW CHART AND PSEUDO CODE
FLOW CHART AND PSEUDO CODE Flowchart A Flowchart is a pictorial representation of an algorithm. The First flowchart is made by John Von Newman in 1945. It is a symbolic diagram of operation sequence, dataflow,
More informationCS 6353 Compiler Construction Project Assignments
CS 6353 Compiler Construction Project Assignments In this project, you need to implement a compiler for a language defined in this handout. The programming language you need to use is C or C++ (and the
More informationCommon Loop Algorithms 9/21/16 42
Common Loop Algorithms 9/21/16 42 Common Loop Algorithms 1. Sum and Average Value 2. Coun4ng Matches 3. Promp4ng un4l a Match Is Found 4. Maximum and Minimum 5. Comparing Adjacent Values 9/21/16 43 Sum
More informationLab 1: Input, Processing, and Output This lab accompanies Chapter 2 of Starting Out with Programming Logic & Design.
Starting Out with Programming Logic and Design 1 Lab 1: Input, Processing, and Output This lab accompanies Chapter 2 of Starting Out with Programming Logic & Design. Lab 1.1 Algorithms Name: Critical Review
More informationSelec%on and Decision Structures in Java: If Statements and Switch Statements CSC 121 Fall 2016 Howard Rosenthal
Selec%on and Decision Structures in Java: If Statements and Switch Statements CSC 121 Fall 2016 Howard Rosenthal Lesson Goals Understand Control Structures Understand how to control the flow of a program
More informationChapter 3. More Flow of Control. Copyright 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Chapter 3 More Flow of Control Overview 3.1 Using Boolean Expressions 3.2 Multiway Branches 3.3 More about C++ Loop Statements 3.4 Designing Loops Slide 3-3 Flow Of Control Flow of control refers to the
More informationCS 115 Lecture 4. More Python; testing software. Neil Moore
CS 115 Lecture 4 More Python; testing software Neil Moore Department of Computer Science University of Kentucky Lexington, Kentucky 40506 neil@cs.uky.edu 8 September 2015 Syntax: Statements A statement
More informationCpSc 1011 Lab 5 Conditional Statements, Loops, ASCII code, and Redirecting Input Characters and Hurricanes
CpSc 1011 Lab 5 Conditional Statements, Loops, ASCII code, and Redirecting Input Characters and Hurricanes Overview For this lab, you will use: one or more of the conditional statements explained below
More informationSolving Equations with Inverse Operations
Solving Equations with Inverse Operations Math 97 Supplement LEARNING OBJECTIVES 1. Solve equations by using inverse operations, including squares, square roots, cubes, and cube roots. The Definition of
More informationConditional Expressions and Decision Statements
Conditional Expressions and Decision Statements June 1, 2015 Brian A. Malloy Slide 1 of 23 1. We have introduced 5 operators for addition, subtraction, multiplication, division, and exponentiation: +,
More informationBasic Data Types and Operators CS 8: Introduction to Computer Science, Winter 2019 Lecture #2
Basic Data Types and Operators CS 8: Introduction to Computer Science, Winter 2019 Lecture #2 Ziad Matni, Ph.D. Dept. of Computer Science, UCSB Your Instructor Your instructor: Ziad Matni, Ph.D(zee-ahd
More informationCom S 127 Lab 2. For the first two parts of the lab, start up Wing 101 and use the Python shell window to try everything out.
Com S 127 Lab 2 Checkpoint 0 Please open the CS 127 Blackboard page and click on Groups in the menu at left. Sign up for the group corresponding to the lab section you are attending. Also, if you haven't
More informationProject 2: After Image
Project 2: After Image FIT100 Winter 2007 Have you ever stared at an image and noticed that when it disappeared, a shadow of the image was still briefly visible. This is called an after image, and we experiment
More informationPh3 Mathematica Homework: Week 1
Ph3 Mathematica Homework: Week 1 Eric D. Black California Institute of Technology v1.1 1 Obtaining, installing, and starting Mathematica Exercise 1: If you don t already have Mathematica, download it and
More informationGet to Know Your Calculator!
Math BD Calculator Lab Name: Date: Get to Know Your Calculator! You are allowed to use a non-graphing, scientific calculator for this course. A scientific calculator is different from an ordinary hand-held
More informationCHAPTER 4: DECIMALS. Image from Microsoft Office Clip Art CHAPTER 4 CONTENTS
CHAPTER 4: DECIMALS Image from Microsoft Office Clip Art CHAPTER 4 CONTENTS 4.1 Introduction to Decimals 4.2 Converting between Decimals and Fractions 4.3 Addition and Subtraction of Decimals 4.4 Multiplication
More informationChapter 2. C++ Basics. Copyright 2014 Pearson Addison-Wesley. All rights reserved.
Chapter 2 C++ Basics Overview 2.1 Variables and Assignments 2.2 Input and Output 2.3 Data Types and Expressions 2.4 Simple Flow of Control 2.5 Program Style 3 2.1 Variables and Assignments Variables and
More informationMark Important Points in Margin. Significant Figures. Determine which digits in a number are significant.
Knowledge/Understanding: How and why measurements are rounded. Date: How rounding and significant figures relate to precision and uncertainty. When significant figures do not apply. Skills: Determine which
More informationThe while Loop 4/6/16 4
Chapter 4: Loops Chapter Goals To implement while and for loops To hand-trace the execution of a program To become familiar with common loop algorithms To understand nested loops To implement programs
More information1. What type of error produces incorrect results but does not prevent the program from running? a. syntax b. logic c. grammatical d.
Gaddis: Starting Out with Python, 2e - Test Bank Chapter Two MULTIPLE CHOICE 1. What type of error produces incorrect results but does not prevent the program from running? a. syntax b. logic c. grammatical
More informationLearning the Language - V
Learning the Language - V Fundamentals We now have locations to store things so we need a way to get things into those storage locations To do that, we use assignment statements Deja Moo: The feeling that
More informationReview Sheet for Midterm #1 COMPSCI 119 Professor William T. Verts
Review Sheet for Midterm #1 COMPSCI 119 Professor William T. Verts Simple Data Types There are a number of data types that are considered primitive in that they contain only a single value. These data
More informationCS 115 Data Types and Arithmetic; Testing. Taken from notes by Dr. Neil Moore
CS 115 Data Types and Arithmetic; Testing Taken from notes by Dr. Neil Moore Statements A statement is the smallest unit of code that can be executed on its own. So far we ve seen simple statements: Assignment:
More informationCMSC 201 Fall 2016 Lab 13 More Recursion
CMSC 201 Fall 2016 Lab 13 More Recursion Assignment: Lab 13 More Recursion Due Date: During discussion, December 5th through 8th Value: 10 points Part 1A: What is Recursion? So far this semester, we ve
More informationSigned umbers. Sign/Magnitude otation
Signed umbers So far we have discussed unsigned number representations. In particular, we have looked at the binary number system and shorthand methods in representing binary codes. With m binary digits,
More informationProgramming for Engineers Introduction to C
Programming for Engineers Introduction to C ICEN 200 Spring 2018 Prof. Dola Saha 1 Simple Program 2 Comments // Fig. 2.1: fig02_01.c // A first program in C begin with //, indicating that these two lines
More informationChapter Four: Loops. Slides by Evan Gallagher. C++ for Everyone by Cay Horstmann Copyright 2012 by John Wiley & Sons. All rights reserved
Chapter Four: Loops Slides by Evan Gallagher The Three Loops in C++ C++ has these three looping statements: while for do The while Loop while (condition) { statements } The condition is some kind of test
More informationCS 1110, LAB 3: MODULES AND TESTING First Name: Last Name: NetID:
CS 1110, LAB 3: MODULES AND TESTING http://www.cs.cornell.edu/courses/cs11102013fa/labs/lab03.pdf First Name: Last Name: NetID: The purpose of this lab is to help you better understand functions, and to
More informationData Representation Type of Data Representation Integers Bits Unsigned 2 s Comp Excess 7 Excess 8
Data Representation At its most basic level, all digital information must reduce to 0s and 1s, which can be discussed as binary, octal, or hex data. There s no practical limit on how it can be interpreted
More informationVariables, expressions and statements
Variables, expressions and statements 2.1. Values and data types A value is one of the fundamental things like a letter or a number that a program manipulates. The values we have seen so far are 2 (the
More informationCpSc 111 Lab 3 Integer Variables, Mathematical Operations, & Redirection
CpSc 111 Lab 3 Integer Variables, Mathematical Operations, & Redirection Overview By the end of the lab, you will be able to: declare variables perform basic arithmetic operations on integer variables
More informationIT 1033: Fundamentals of Programming Loops
IT 1033: Fundamentals of Programming Loops Budditha Hettige Department of Computer Science Repetitions: Loops A loop is a sequence of instruction s that is continually repeated until a certain condition
More informationLab 4 Fruitful Functions
Lab 4 Fruitful Functions September 19, 2018 1 ME 30 Lab 4 - Functions and Style Description and Summary: >A function in programming is a block of code that performs some task. Functions are a way to organize
More informationAn Introduction to Python
An Introduction to Python Day 2 Renaud Dessalles dessalles@ucla.edu Python s Data Structures - Lists * Lists can store lots of information. * The data doesn t have to all be the same type! (unlike many
More informationPython Programming Exercises 1
Python Programming Exercises 1 Notes: throughout these exercises >>> preceeds code that should be typed directly into the Python interpreter. To get the most out of these exercises, don t just follow them
More informationCS 115 Exam 3, Fall 2011
Your name: Rules You may use one handwritten 8.5 x 11 cheat sheet (front and back). This is the only resource you may consult during this exam. Explain/show work if you want to receive partial credit for
More informationCMSC 201 Spring 2019 Lab 06 Lists
CMSC 201 Spring 2019 Lab 06 Lists Assignment: Lab 06 Lists Due Date: Thursday, March 7th by 11:59:59 PM Value: 10 points This week s lab will put into practice the concepts you learned about lists: indexing,
More informationCSCI 204 Introduction to Computer Science II
CSCI 04 Introduction to Computer Science II Lab Quicksort and Efficiency Objectives The objectives of this lab are to: Examine program efficiency Improve a program s efficiency Become familiar with Quicksort
More informationBeginning and Intermediate Algebra Chapter 0: Arithmetic
Beginning and Intermediate Algebra Chapter 0: Arithmetic An open source (CC-BY) textbook by Tyler Wallace 1 ? Beginning and Intermediate Algebra by Tyler Wallace is licensed under a Creative Commons Attribution
More informationGateway Regional School District VERTICAL ARTICULATION OF MATHEMATICS STANDARDS Grades K-4
NUMBER SENSE & OPERATIONS K.N.1 Count by ones to at least 20. When you count, the last number word you say tells the number of items in the set. Counting a set of objects in a different order does not
More information1. Variables 2. Arithmetic 3. Input and output 4. Problem solving: first do it by hand 5. Strings 6. Chapter summary
Topic 2 1. Variables 2. Arithmetic 3. Input and output 4. Problem solving: first do it by hand 5. Strings 6. Chapter summary Arithmetic Operators C++ has the same arithmetic operators as a calculator:
More informationImelda C. Go, South Carolina Department of Education, Columbia, SC
PO 082 Rounding in SAS : Preventing Numeric Representation Problems Imelda C. Go, South Carolina Department of Education, Columbia, SC ABSTRACT As SAS programmers, we come from a variety of backgrounds.
More informationPart III Appendices 165
Part III Appendices 165 Appendix A Technical Instructions Learning Outcomes This material will help you learn how to use the software you need to do your work in this course. You won t be tested on it.
More informationENGINEERING 1020 Introduction to Computer Programming M A Y 2 6, R E Z A S H A H I D I
ENGINEERING 1020 Introduction to Computer Programming M A Y 2 6, 2 0 1 0 R E Z A S H A H I D I Today s class Constants Assignment statement Parameters and calling functions Expressions Mixed precision
More informationC++ Programming Language Lecture 2 Problem Analysis and Solution Representation
C++ Programming Language Lecture 2 Problem Analysis and Solution Representation By Ghada Al-Mashaqbeh The Hashemite University Computer Engineering Department Program Development Cycle Program development
More informationOnly to be used for arranged hours. Order of Operations
Math 84 Activity # 1 Your name: Order of Operations Goals: 1) Evaluate Real numbers with Exponents. ) Use the Order of Operations to Evaluate Expressions. ) Review Exponents and Powers of Ten Integer exponents
More informationGetting Started with Python
Fundamentals of Programming (Python) Getting Started with Python Sina Sajadmanesh Sharif University of Technology Some slides have been adapted from Python Programming: An Introduction to Computer Science
More informationCSCE150A. Introduction. While Loop. Compound Assignment. For Loop. Loop Design. Nested Loops. Do-While Loop. Programming Tips CSCE150A.
Chapter 5 While For 1 / 54 Computer Science & Engineering 150A Problem Solving Using Computers Lecture 05 - s Stephen Scott (Adapted from Christopher M. Bourke) Fall 2009 While For 2 / 54 5.1 Repetition
More informationIntermediate Algebra. Gregg Waterman Oregon Institute of Technology
Intermediate Algebra Gregg Waterman Oregon Institute of Technology c 2017 Gregg Waterman This work is licensed under the Creative Commons Attribution 4.0 International license. The essence of the license
More informationOffice 2016 Excel Basics 09 Video/Class Project #21 Excel Basics 9: Number Formatting and the ROUND Function
Office 2016 Excel Basics 09 Video/Class Project #21 Excel Basics 9: Number Formatting and the ROUND Function Goal in video # 9: Learn more about Number Formatting. Learn when and how to use the ROUND function
More informationCT 229 Fundamentals of Java Syntax
CT 229 Fundamentals of Java Syntax 19/09/2006 CT229 New Lab Assignment Monday 18 th Sept -> New Lab Assignment on CT 229 Website Two Weeks for Completion Due Date is Oct 1 st Assignment Submission is online
More informationIntroduction to: Computers & Programming: Review prior to 1 st Midterm
Introduction to: Computers & Programming: Review prior to 1 st Midterm Adam Meyers New York University Summary Some Procedural Matters Summary of what you need to Know For the Test and To Go Further in
More information