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首页Numerical Computing with MATLAB
This is a lively introductory textbook in numerical methods, MATLAB, and technical computing, with an emphasis on the informed use of mathematical software. Readers will learn how to use the mathematical functions in MATLAB correctly, appreciate their limitations, and modify them appropriately. Computer graphics are made extensive use of
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Preface
Numerical Computing with MATLAB is a textbook for an introductory course
in numerical methods, Matlab, and technical computing. The emphasis is on in-
formed use of mathematical software. We want you learn enough about the mathe-
matical functions in Matlab that you will be able to use them correctly, appreciate
their limitations, and modify them when necessary to suit your own needs. The
topics include
• introduction to Matlab,
• linear equations,
• interpolation,
• zero and roots,
• least squares,
• quadrature,
• ordinary differential equations,
• random numbers,
• Fourier analysis,
• eigenvalues and singular values,
• partial differential equations.
George Forsythe initiated a software-based numerical methods course at Stan-
ford University in the late 1960s. The textbooks by Forsythe, Malcolm, and Moler
[1] and Kahaner, Moler, and Nash [2] that evolved from the Stanford course were
based upon libraries of Fortran subroutines.
This textbook is based upon Matlab. NCM, a collection of over 70 M-
files, forms an essential part of the book. Many of the over 200 exercises involve
modifying and extending the programs in NCM. The book also makes extensive
use of computer graphics, including interactive graphical expositions of numerical
algorithms.
The prerequisites for the course, and the book, include
February 15, 2008
1
2 Preface
• calculus,
• some familiarity with ordinary differential equations,
• some familiarity with matrices,
• some computer programming experience.
If you’ve never used Matlab before, the first chapter will help you get started. If
you’re already familiar with Matlab, you can glance over most of the first chapter
quickly. Everyone should read the section in the first chapter about floating-point
arithmetic.
There is probably too much material here for a one-quarter or one-semester
course. Plan to cover the first several chapters and then choose the portions of the
last four chapters that interest you.
Make sure that the NCM collection is installed on your network or your per-
sonal computer as you read the book. The software is available from a Web site
devoted to the book [3]:
http://www.mathworks.com/moler
There are three types of NCM files:
• gui files: interactive graphical demonstrations;
• tx files: textbook implementations of built-in Matlab functions;
• others: miscellaneous files, primarily associated with exercises.
When you have NCM available,
ncmgui
produces the figure shown on the next page. Each thumbnail plot is actually a push
button that launches the corresponding gui.
This book would not have been possible without the people at The MathWorks
and at SIAM. Both groups are professional, creative, and delightful to work with.
They have been esp ecially supportive of this book project. Out of the many friends
and colleagues who have made specific contributions, I want to mention five in
particular. Kathryn Ann Moler has used early drafts of the book several times in
courses at Stanford and has been my best critic. Tim Davis and Charlie Van Loan
wrote especially helpful reviews. Lisl Urban did an immaculate editing job. My wife
Patsy has lived with my work habits and my laptop and loves me anyway. Thanks,
everyone.
This second printing includes a revision of the section on Google PageRank
that improves the handling of web pages with no out links, a short new section
in the Random Numbers chapter, removal of material on inline and feval, and
correction of a few dozen minor typographical errors.
Cleve Moler
February 15, 2008
Preface 3
ncmgui.
4 Preface
Bibliography
[1] G. Forsythe, M. Malcolm, and C. Moler, Computer Methods for Math-
ematical Computations, Prentice–Hall, Englewood Cliffs, NJ, 1977.
[2] D. Kahaner, C. Moler, and S. Nash, Numerical Methods and Software,
Prentice–Hall, Englewood Cliffs, NJ, 1989.
[3] C. Moler, Numerical Computing with MATLAB,
Electronic edition: The MathWorks, Inc., Natick, MA, 2004.
http://www.mathworks.com/moler
Print edition: SIAM, Philadelphia, 2004.
http://www.ec-securehost.com/SIAM/ot87.html
5
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