Manual

MATLAB

®

The Language of Technical Computing

Getting Started with MATLAB®
Version 7

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Getting Started with MATLAB
© COPYRIGHT 1984 - 2005 by The MathWorks, Inc.
The softwaredescribed in this document is furnished under a license agreement. The software may be used
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MATLAB, Simulink, Stateflow, Handle Graphics, Real-Time Workshop, and xPC TargetBox are
registered trademarks of The MathWorks, Inc.
Other product or brand names are trademarks or registered trademarks of their respective holders.Revision History
December 1996
May 1997
September 1998
September 2000
June 2001
July 2002
August 2002
June 2004
October 2004
March 2005

First printing
Second printing
Third printing
Fourth printing
Online only
Online only
Fifth printing
Sixth printing
Online only
Online only

For MATLAB 5
For MATLAB 5.1
For MATLAB 5.3
Revised for MATLAB 6 (Release 12)
Revised forMATLAB 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)

Contents
Introduction

1
What Is MATLAB? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
The MATLAB System . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . 1-3
MATLAB Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
MATLAB Online Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Starting and Quitting MATLAB . . . . . . . . . . . . . . . . . . . . . . . .
Starting MATLAB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Quitting MATLAB . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . .
MATLAB Desktop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-6
1-6
1-6
1-7

Matrices and Arrays

2
Matrices and Magic Squares . . . . . . . . . . . . . . . . . . . . . . . . . . .
Entering Matrices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
sum, transpose, and diag . . . . . ....