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Simulink are registered trademarks of The MathWorks Inc See www mathworks com trademarks for a list of additional trademarks Other product or brand names may be trademarks or registered trademarks of their respective holders Patents MathWorks products are protected by one or more U S patents Please see www mathworks com patents for more information Revision History December 1996 May 1997 September 1998 September 2000 June 2001 July 2002 August 2002 June 2004 October 2004 March 2005 June 2005 September 2005 March 2006 September 2006 March 2007 September 2007 March 2008 October 2008 March 2009 September 2009 March 2010 September 2010 April 2011 September 2011 March 2012 First printing Second printing Third printing Fourth printing Online only Online only Fifth printing Sixth printing Online only Online only Seventh printing Online only Online only Eighth printing Ninth printing Tenth printing Eleventh printing Twelfth printing Thirteenth printing Fourteenth printing Fifteenth printing Sixteenth printing Online only Seventeenth printing Eighteenth printing September 2012 Nineteenth printing March 2013 Twentieth printing September 2013 Twenty first printing For MATLAB 5 For MATLAB 5 1 For MATLAB 5 3 Revised for MATLAB 6 Release 12 Revised for MATLAB 6 1 Release 12 1 Revised for MATLAB 6 5 Release 13 Revised for MATLAB 6 5 Revised for MATLAB 7 0 Release 14 Revised for MATLAB 7 0 1 Release 14SP1 Revised for MATLAB 7 0 4 Release 14SP2 Minor revision for MATLAB 7 0 4 Release 14SP2 Minor revision for MATLAB 7 1 Release 14SP3 Minor revision for MATLAB 7 2 Release 2006a Minor revision for MATLAB 7 3 Release 2006b Minor revision for MATLAB 7 4 Release 2007a Minor revision for MATLAB 7 5 Release 2007b Minor revision for MATLAB 7 6 Release 2008a Minor revision for MATLAB 7 7 Release 2008b Minor revision for MATLAB 7 8 Release 2009a Minor revision for MATLAB 7 9 Release 2009b Minor revision for MATLAB 7 10 Release 2010a Revised for MATLAB 7 11 R2010b Revised for MATLAB 7 12 R2011a Revised for MATLAB 7 13 R2011b Revised for Version 7 14 R2012a Renamed from MATLAB Getting Started Guide Revised for Version 8 0 R2012b Revised for Version 8 1 R2013a Revised for Version 8 2 R2013b Contents Quick Start 1 MATLAB Product Description Key Features 1 2 1 2 Desktop Basics 1 3 Matrices and Arrays Array Creation Matrix and Array Operations Concatenation Complex Numbers 1 6 1 6 1 7 1 9 1 10 Array Indexing 1 11 Workspace Variables 1 13 1 15 Calling Functions 1 17 2 D and 3 D Plots Line Plots 3 D Plots Subplots 1 18 1 18 1 21 1 22 Programming and Scripts Sample Script Loops and Conditional Statements Script Locations 1 24 1 24 1 25 1 27 Help and Documentation 1 28 Character Strings v Language Fundamentals 2 vi Contents Matrices and Magic Squares About Matrices Entering Matrices sum transpose and diag The magic Function Generating Matrices 2 2 2 2 2 4 2 5 2 7 2 8 Expressions Variables Numbers Matrix Operators Array Operators Functions Examples of Expressions 2 10 2 10 2 11 2 12 2 13 2 15 2 16 Entering Commands The format Function Suppressing Output Entering Long Statements Command Line Editing 2 18 2 18 2 19 2 20 2 20 Indexing Subscripts The Colon Operator Concatenation Deleting Rows and Columns Scalar Expansion Logical Subscripting The find Function 2 21 2 21 2 22 2 23 2 24 2 25 2 26 2 27 Types of Arrays Multidimensional Arrays Cell Arrays Characters and Text Structures 2 28 2 28 2 30 2 32 2 35 Mathematics 3 Linear Algebra Matrices in the MATLAB Environment Systems of Linear Equations Inverses and Determinants Factorizations Powers and Exponentials Eigenvalues Singular Values 3 2 3 2 3 11 3 22 3 26 3 34 3 37 3 40 Operations on Nonlinear Functions Function Handles Function Functions 3 44 3 44 3 44 Multivariate Data 3 47 Data Analysis Introduction Preprocessing Data Summarizing Data Visualizing Data Modeling Data 3 48 3 48 3 48 3 54 3 58 3 71 Graphics 4 Basic Plotting Functions Creating a Plot Plotting Multiple Data Sets in One Graph Specifying Line Styles and Colors Plotting Lines and Markers Graphing Imaginary and Complex Data Adding Plots to an Existing Graph Figure Windows Displaying Multiple Plots in One Figure Controlling the Axes 4 2 4 2 4 3 4 4 4 5 4 7 4 8 4 10 4 10 4 11 vii Adding Axis Labels and Titles Saving Figures 4 13 4 14 Creating Mesh and Surface Plots About Mesh and Surface Plots Visualizing Functions of Two Variables 4 16 4 16 4 16 Plotting Image Data About Plotting Image Data Reading and Writing Images 4 23 4 23 4 24 Printing Graphics Overview