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This is a special edition of an established title widely
used by colleges and universities throughout the world.
Pearson published this exclusive edition for the benefit
ISBN-13: 978-1-292-06053-8
of students outside the united States and Canada. if you ISBN-10: 1-292-06053-0
9 0 0 0 0
purchased this book within the united States or Canada
you should be aware that it has been imported without
the approval of the Publisher or Author.
Pearson Global Edition 9 781292 060538
®
MATLAB for Engineers
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®
MATLAB for Engineers
Fourth Edition
Global Edition
Holly Moore
Salt Lake Community College
Salt Lake City, Utah
Global Edition contributions by
SoMitra KuMar SanadHya
Indraprastha Institute of Information Technology, Delhi
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VP/Editorial Director, Engineering/Computer Science: Marcia J. Acquisitions Editor, Global Edition: Aditee Agarwal
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© Pearson Education Limited 2015
The rights of Holly Moore to be identified as the author of this work have been asserted by her in accordance with the Copyright, Designs
and Patents Act 1988.
Authorized adaptation from the United States edition, entitled MATLAB® for Engineers, 4th edition, ISBN 978-0-133-48597-4, by Holly Moore, published
by Pearson Education © 2015.
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All trademarks used herein are the property of their respective owners.The use of any trademark in this text does not vest in the author or
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British Library Cataloguing-in-Publication Data
A catalogue record for this book is available from the British Library
10 9 8 7 6 5 4 3 2 1
14 13 12 11 10
Typeset in New Baskerville Std Roman by Pavithra Jayapaul, Jouve
Printed and bound by Courier Kendallville in The United States of America
ISBN 10: 1-292-06053-0
http://www.pearsonglobaleditions.com ISBN 13: 978-129-206053-8 (Print)
ISBN 13: 978-129-206074-3 (PDF)
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Contents
About this book 11
DeDicAtion AnD AcknowleDgments 15
1 • About MAtlAb® 17
1.1 What Is MATLAB®? 17
1.2 Student Edition of MATLAB® 18
1.3 How Is MATLAB® Used in Industry? 19
1.4 Problem Solving in Engineering and Science 21
2 • MAtlAb® environment 25
2.1 Getting Started 25
2.2 MATLAB® Windows 27
2.3 Solving Problems with MATLAB® 33
2.4 Saving Your Work 58
Summary 68
MATLAB® Summary 69
Key Terms 71
Problems 71
3 • built-in MAtlAb® Functions 79
Introduction 79
3.1 Using Built-In Functions 79
3.2 Using the Help Feature 81
3.3 Elementary Math Functions 84
3.4 Trigonometric Functions 92
3.5 Data Analysis Functions 96
3.6 Random Numbers 116
3.7 Complex Numbers 120
3.8 Computational Limitations 124
3.9 Special Values and Miscellaneous Functions 125
Summary 127
5
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6 Contents
MATLAB® Summary 128
Key Terms 129
Problems 130
4 • MAnipulAting MAtlAb® mAtrices 137
4.1 Manipulating Matrices 137
4.2 Problems with Two Variables 144
4.3 Special Matrices 151
Summary 157
MATLAB® Summary 158
Key Terms 158
Problems 158
5 • plotting 165
Introduction 165
5.1 Two-Dimensional Plots 165
5.2 Subplots 182
5.3 Other Types of Two-Dimensional Plots 184
5.4 Three-Dimensional Plotting 201
5.5 Editing Plots from the Menu Bar 207
5.6 Creating Plots from the Workspace Window 209
5.7 Saving Your Plots 210
Summary 211
MATLAB® Summary 211
Problems 213
6 • user-DefineD functions 223
Introduction 223
6.1 Creating Function M-Files 223
6.2 Creating Your Own Toolbox of Functions 242
6.3 Anonymous Functions and Function Handles 244
6.4 Function Functions 245
6.5 Subfunctions 246
Summary 249
MATLAB® Summary 250
Key Terms 251
Problems 251
7 • user-controlleD input AnD output 258
Introduction 258
7.1 User-Defined Input 258
7.2 Output Options 262
7.3 Graphical Input 272
7.4 More Cell Mode Features 273
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Contents 7
7.5 Reading and Writing Data from Files 275
7.6 Debugging Your Code 277
Summary 281
MATLAB® Summary 282
Key Terms 283
Problems 283
8 • logicAl functions AnD selection structures 287
Introduction 287
8.1 Relational and Logical Operators 288
8.2 Flowcharts and Pseudocode 290
8.3 Logical Functions 292
8.4 Selection Structures 298
8.5 Debugging 314
Summary 315
MATLAB® Summary 316
Key Terms 316
Problems 316
9 • repetition structures 327
Introduction 327
9.1 For Loops 328
9.2 While Loops 336
9.3 Break and Continue 344
9.4 Midpoint Break Loops 345
9.5 Nested Loops 349
9.6 Improving the Efficiency of Loops 350
Summary 353
MATLAB® Summary 354
Key Terms 354
Problems 354
10 • MAtrix AlgebrA 359
Introduction 359
10.1 Matrix Operations and Functions 359
10.2 Solutions of Systems of Linear Equations 379
10.3 Special Matrices 393
Summary 396
MATLAB® Summary 398
Key Terms 398
Problems 398
11 • other KinDs of ArrAys 406
Introduction 406
11.1 Data Types 407
11.2 Multidimensional Arrays 416
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8 Contents
11.3 Character Arrays 418
11.4 Cell Arrays 423
11.5 Structure Arrays 424
Summary 432
MATLAB® Summary 433
Key Terms 433
Problems 433
12 • syMbolic MAtheMAtics 439
Introduction 439
12.1 Symbolic Algebra 440
12.2 Solving Expressions and Equations 448
12.3 Symbolic Plotting 461
12.4 Calculus 469
12.5 Differential Equations 483
12.6 Converting Symbolic Expressions to Anonymous Functions 486
Summary 487
MATLAB® Summary 489
Problems 490
13 • nuMericAl techniques 499
13.1 Interpolation 499
13.2 Curve Fitting 509
13.3 Using the Interactive Fitting Tools 522
13.4 Differences and Numerical Differentiation 525
13.5 Numerical Integration 534
13.6 Solving Differential Equations Numerically 540
Summary 547
MATLAB® Summary 549
Key Terms 550
Problems 550
14 • ADvAnceD grAphics 559
Introduction 559
14.1 Images 559
14.2 Handle Graphics 575
14.3 Animation 579
14.4 Other Visualization Techniques 585
14.5 Introduction to Volume Visualization 587
Summary 590
MATLAB® Summary 591
Key Terms 592
Problems 593
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Contents 9
15 • creAting grAphicAl user interfAces 595
Introduction 595
15.1 A Simple GUI with One User Interaction 596
15.2 A Graphical User Interface with Multiple User
Interactions—Ready_Aim_Fire 604
15.3 An Improved Ready_Aim_Fire Program 607
15.4 A Much Better Ready_Aim_Fire Program 608
15.5 Built-In GUI Templates 612
Summary 616
Key Terms 616
Problems 616
16 • siMulinK®—A brief introDuction 618
Introduction 618
16.1 Applications 618
16.2 Getting Started 619
16.3 Solving Differential Equations with Simulink® 627
Summary 632
Key Terms 633
Problems 633
AppenDix A • speciAl chArActers, coMMAnDs,
AnD functions 637
AppenDix b • scAling techniques 652
AppenDix c • the reADy_AiM_fire gui 655
AppenDix D 660
inDex 661
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