Author Archives: Nick Higham

Foundations of Applied Mathematics Book Series

Foundations of Applied Mathematics, Volume 1: Mathematical Analysis was published by SIAM this summer. Written by Jeffrey Humpherys, Tyler J. Jarvis, and Emily J. Evans, all from Brigham Young University, this is the first of a four-book series, aimed at … Continue reading

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Christopher T. H. Baker (1939–2017)

By Nick Higham and Neville Ford (University of Chester) Christopher Thomas Hale Baker died on August 20, 2017 at the age of 78. He was born on the Isle of Thanet, Kent, in 1939, and was educated at Colchester Royal … Continue reading

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How Fast is Quadruple Precision Arithmetic?

When I am testing an algorithm running in double precision arithmetic I often want to compare the computed solution with a reference solution: a solution that is fully accurate to double precision. To obtain one I solve the same problem … Continue reading

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How and How Not to Compute a Relative Error

The relative error in a scalar as an approximation to a scalar is the absolute value of . I recently came across a program in which had been computed as . It had never occurred to me to compute it … Continue reading

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SIAM Annual Meeting 2017 Highlights

It’s a couple of weeks since the 2017 SIAM Annual Meeting, which I previewed in an earlier post. The meeting was held at the David Lawrence Convention Center in Pittsburgh and was co-chaired by Des Higham (University of Strathclyde) and … Continue reading

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Accelerating the Solution of Linear Systems by Iterative Refinement in Three Precisions

by Erin Carson and Nick Higham With the growing availability of half precision arithmetic in hardware and quadruple precision arithmetic in software, it is natural to ask whether we can harness these different precisions, along with the standard single and … Continue reading

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Five Examples of Proofreading

Every writer has also to be a proofreader, whether it be of his or her own drafts or of proofs sent by a publisher. In this post I will give some real-life examples of corrections to proofs. The problems to … Continue reading

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SIAM Annual Meeting 2017 Preview

It’s a month to the 2017 SIAM Annual Meeting at the David Lawrence Convention Center in Pittsburgh. We’re returning to the location of the 2010 meeting. The meeting is co-chaired by Des Higham (University of Strathclyde) and Jennifer Mueller (Colorado … Continue reading

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A Second Course in Linear Algebra, by Garcia and Horn (2017)

The publication of a new linear algebra textbook is not normally a cause for excitement. However, Roger Horn is co-author of two of the most highly regarded and widely used books on matrix analysis: Matrix Analysis (2nd edition, 2013) and … Continue reading

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SIAM Books Available Worldwide from Eurospan

SIAM books are now available to individuals, bookstores, and other retailers outside North America from Eurospan, who have taken over the role previously carried out by Cambridge University Press. This is significant news for those of us outside North America … Continue reading

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