# Accuracy and Stability of Numerical Algorithms

What is the most accurate way to sum floating point numbers? What are the advantages of IEEE arithmetic? How accurate is Gaussian elimination and what were the key breakthroughs in the development of error analysis for the method? The answers to these and many related questions are included here.

This book gives a thorough, up-to

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## Overview

What is the most accurate way to sum floating point numbers? What are the advantages of IEEE arithmetic? How accurate is Gaussian elimination and what were the key breakthroughs in the development of error analysis for the method? The answers to these and many related questions are included here.

This book gives a thorough, up-to-date treatment of the behavior of numerical algorithms in finite precision arithmetic. It combines algorithmic derivations, perturbation theory, and rounding error analysis. Software practicalities are emphasized throughout, with particular reference to LAPACK and MATLAB. The best available error bounds, some of them new, are presented in a unified format with a minimum of jargon. Because of its central role in revealing problem sensitivity and providing error bounds, perturbation theory is treated in detail.

Historical perspective and insight are given, with particular reference to the fundamental work of Wilkinson and Turing, and the many quotations provide further information in an accessible format.

The book is unique in that algorithmic developments and motivations are given succinctly and implementation details minimized, so that attention can be concentrated on accuracy and stability results. Here, in one place and in a unified notation, is error analysis for most of the standard algorithms in matrix computations. Not since Wilkinson's Rounding Errors in Algebraic Processes (1963) and The Algebraic Eigenvalue Problem (1965) has any volume treated this subject in such depth. A number of topics are treated that are not usually covered in numerical analysis textbooks, including floating point summation, block LU factorization, condition number estimation, the Sylvester equation, powers of matrices, finite precision behavior of stationary iterative methods, Vandermonde systems, and fast matrix multiplication.

Although not designed specifically as a textbook, this volume is a suitable reference for an advanced course, and could be used by instructors at all levels as a supplementary text from which to draw examples, historical perspective, statements of results, and exercises (many of which have never before appeared in textbooks). The book is designed to be a comprehensive reference and its bibliography contains more than 1100 references from the research literature.

Audience

Specialists in numerical analysis as well as computational scientists and engineers concerned about the accuracy of their results will benefit from this book. Much of the book can be understood with only a basic grounding in numerical analysis and linear algebra.

Nicholas J. Higham is a Professor of Applied Mathematics at the University of Manchester, England. He is the author of more than 40 publications and is a member of the editorial boards of the SIAM Journal on Matrix Analysis and Applications and the IMA Journal of Numerical Analysis. His book Handbook of Writing for the Mathematical Sciences was published by SIAM in 1993.

## Editorial Reviews

Booknews
Treats the behavior of numerical algorithms in finite precision arithmetic, combining algorithmic derivations, perturbation theory, and rounding error analysis and emphasizing software practicalities, with particular reference to LAPACK and MATLAB. Includes historical perspectives, especially on the work of Wilkinson and Turing, with quotations introducing chapters on subjects such as floating point summation, condition number estimation, and the Sylvester equation. Although designed as a reference rather than a text, it includes problems and solutions. Annotation c. Book News, Inc., Portland, OR (booknews.com)
This graduate textbook deals with the effects of finite precision arithmetic on numerical algorithms, particularly the rounding errors that arise in numerical linear algebra. Higham (applied mathematics, University of Manchester) examines Gaussian elimination, LU and QR factorization, and the least squares problem, among others. The second edition adds chapters on symmetric indefinite and skew-symmetric systems, and nonlinear systems and Newton's method. Annotation c. Book News, Inc., Portland, OR
S. Hitotumatu
This book is a monumental work on the analysis of rounding error and will serve as a new standard textbook on this subject, especially for linear computation.
Mathematical Reviews
Jaroslav Stark
An attempt (successful in my opinion) to produce a successor to Wilkinson's text and give both a modern treatment of the material presented there, and to give a comprehensive account of the many developments in the subject since Wilkinson's time. .I thoroughly recommend the volume to anyone who uses computers in their work.
Mathematics Today
S. Siltanen
A comprehensive book concerning linear algebraic calculations with floating-point arithmetic. In its successful effort to give deep understanding of finite precision computations spiced with historical aspects, the book honors its classical predecessors, namely Wilkinson's books. .The nearly 700 pages.are written in a lively and down-to-earth manner, keeping several aspects in mind all the time: algorithmic derivations, perturbation theory, and rounding error analysis. Well organized material combined with up-to-date examples, a bibliography with more than 1000 entries, and a collection of good exercises constitutes a convincing piece of scientific literature.
Inverse Problems
From the Publisher
'This book is a monumental work on the analysis of rounding error and will serve as a new standard textbook on this subject, especially for linear computation.' S. Hitotumatu, Mathematical Reviews

'…This definitive source on the accuracy and stability of numerical algorithms is quite a bargain and a worthwhile addition to the library of any statistician heavily involved in computing.' Robert L. Strawderman, Journal of the American Statistical Association

'…A monumental book that should be on the bookshelf of anyone engaged in numerics, be it as a specialist or as a user.' A. van der Sluis, ITW Nieuws

'This text may become the new 'Bible' about accuracy and stability for the solution of systems of linear equations. It covers 688 pages carefully collected, investigated, and written … One will find that this book is a very suitable and comprehensive reference for research in numerical linear algebra, software usage and development, and for numerical linear algebra courses.' N. Köckler, Zentrallblatt für Mathematik

'… Nick Higham has assembled an enormous amount of important and useful material in a coherent, readable form. His book belongs on the shelf of anyone who has more than a casual interest in rounding error and matrix computations. I hope the author will give us the 600-odd page sequel. But if not, he has more than earned his respite - and our gratitude.' G. W. Stewart, SIAM Review

## Product Details

ISBN-13:
9780898713558
Publisher:
SIAM
Publication date:
01/28/1996
Series:
Miscellaneous Bks.
Edition description:
Older Edition
Pages:
688
Product dimensions:
6.69(w) x 9.45(h) x (d)

## Related Subjects

Alan Edelman
Nick Higham, already famous for his writing abilities, has produced the next "bible" of accuracy and stability. Finally, a modern book properly demonstrates the art and science of analyzing rounding errors. With over 1,100 references, Higham's book is the most comprehensive and scholarly treatment of the field. .This book may be used as a classroom text, as a reference for current and future designers of numerical software libraries, or for anyone who simply may have wondered whether the order of summation of floating point numbers matters or whether the condition number is all there is to understand about the "goodness" in a matrix. .The book is a pleasure to read, the problems are wonderful, and most importantly Higham includes terrific open research problems. I wonder how many will have been solved by the year 2100.
— (Alan Edelman, Massachusetts Institute of Technology)
Beresford Parlett
This is a masterful book. .Primarily it studies the influence of roundoff errors on algorithms to solve dense linear systems of equations and least squares problems...What Higham has done, both in his research and in this book, is to revisit all this material in his own way and unearth gaps and weaknesses that none of us suspected. With characteristic thoroughness Higham has read, and digested, almost all that has been published on his chosen topics from the beginning. He has crafted his notation with care and we will all benefit from his scholarship, his powers of exposition, and his quotations.
— (Beresford Parlett, University of California, Berkeley)
Stewart
A superb book by a leading scientist and scholar. It will be the definitive work on error analysis for years to come.
— (G.W. Stewart, University of Maryland)