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@Seismicisolation @Seismicisolation
MATLAB® Essentials
A First Course for Engineers and Scientists
William Bober
MATLAB ® is a trademark of The MathWorks, Inc. and is used with permission. The MathWorks does not warrant the accuracy of the text or exercises in this book. This book’s use or discussion of MATLAB® software or related products does not constitute endorsement or sponsorship by The MathWorks of a particular pedagogical approach or particular use of the MATLAB ® software.
CRC Press
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© 2018 by Taylor & Francis Group, LLC
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Printed on acid-free paper
International Standard Book Number-13: 978-1-138-56328-5 (Hardback)
International Standard Book Number-13: 978-1-138-03237-8 (Paperback)
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Preface
I have taught computer applications course for engineers in the mechanical and civil engineering departments at Florida Atlantic University (FAU), Boca Raton, Florida, for many years. I first started teaching the course using the Fortran language. Some years later, the department switched to the C/C++ language. More recently, the course has been taught using MATLAB®. The advantage of using MATLAB over many other programming languages is that MATLAB contains functions that enable the user to solve various mathematical problems, such as interpolation, roots of algebraic equations, the relative minimum and maximum of a function, a system of linear algebraic equations, curve-fitting problems, definite integrals, a system of ordinary differential equations, and many others, some of which require special tool boxes at an extra cost. There are also programming techniques available in MATLAB but not available in either Fortran or C/C++. Because not all engineering firms use MATLAB, I decided, in writing this textbook, to first cover some very basic building blocks applicable to most, if not all, computer programming languages used by engineers before getting into programming that is specific to MATLAB. The syntax of these basic building blocks may be different in different languages, but the concept is the same. The basic building blocks in programming covered in Chapters 2 through 4 are as follows:
1. Variable types, scalars, vectors, and matrices
2. Assignments (which, in most cases in this book, are arithmetic statements)
3. Input/output statements
4. Loop statements
5. Conditional operators
6. Functions (built-in and self-written)
Before MATLAB, it was rare that I would write a computer program without using a for loop. With that in mind, in this textbook, I introduce for loops as early as is feasible. The authors of most other MATLAB textbooks introduce for loops at a much later stage in their books. Although students at FAU take the computer programming course in their sophomore year, having taken Calculus II, the textbook can also be used at the freshman level (the first eight chapters do not involve calculus). Although there are many engineering example applications, the governing equations are given without derivations. Therefore, students not only see variables x and y but also see variables of pressure ( p), temperature (T ), time (t), velocity (V),
voltage (v), current (i ), and so on. The chapters include review sections, which may be used by the course instructor to ask the class questions on the material that has been recently covered.
The primary objectives of the textbook are as follows:
1. To teach the reader the basic concepts in writing a computer program (script) on the MATLAB platform, although many of the concepts taught are also applicable to other computer programming languages.
2. To familiarize the reader with many of MATLAB’s built-in functions, some of which can be used to solve several mathematical problems, such as interpolating for properties between table values, finding the roots of transcendental and polynomial equations, determining the relative minimum or maximum of a function, and solving a system of linear algebraic equations and curve fitting. The last two chapters involve calculus and thus would only be applicable for a course at the sophomore or higher level. These last two chapters cover MATLAB’s functions for determining the value of a definite integral and for solving a system of ordinary differential equations.
I have tried to organize the material so that the student gets to write a meaningful program within several weeks of starting the course. The students are required to add a comment section to their programs describing what the program is about. Nearly all exercises and projects require the student to produce tables or graphs or both.
The text contains many complete sample MATLAB programs and their results, including tables, graphs, and comments what the program is about. These examples should provide guidance to the student on completing the exercises and projects that are listed in each chapter. Projects are at the end of the chapters and are usually more difficult than the exercises. Many of the projects are nontrivial. In recent times, I have used several exercise problems as in-class exams in which students submit their MATLAB programs and results to me on blackboard. Projects are given as take-home exams to be submitted to me within 1 or 2 weeks, depending on the difficulty of the project. The projects require the student to write a computer program in MATLAB to solve a mathematical or engineering-type problem.
The computer applications course that I teach is run as a lecture-laboratory course. The advantage of running the course in this manner is that the instructor is in the computer laboratory to help the student debug his or her program. This includes the example programs as well as the exercises and the projects. See the Table of Contents to get a more complete description of the material covered in this textbook.
All example scripts in this book are available for download on the CRC Press Website at https://www.crcpress.com/MATLAB-Essentials-A-FirstCourse-for-Engineers-and-Scientists/Bober/p/book/9781138032378 .
MATLAB® is a registered trademark of The MathWorks, Inc. For product information, please contact:
The MathWorks, Inc.
3 Apple Hill Drive
Natick, MA 01760-2098 USA
Tel: 508-647-7000
Fax: 508-647-7001
E-mail: info@mathworks.com
Web: www.mathworks.com
@Seismicisolation @Seismicisolation
Acknowledgments
I thank Jonathan Plant of CRC Press for his confidence and encouragement in writing this textbook. I thank Dr. Andrew Stevens for allowing me to extract many electrical engineering concepts and projects from our joint textbook titled Numerical and Analytical Methods with MATLAB for Electrical Engineers I also thank Ed Curtis and Bala Gowri for guiding me through the textbook submission process. I also thank the following people for their graphic contributions: Danielle Mitchell and Jacqueline Ferrer. Finally, I wish to express my deep gratitude to my wife for tolerating the many hours I spent on preparation of this manuscript—time which otherwise would have been devoted to my family.
@Seismicisolation @Seismicisolation
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