Tag Archives: MATLAB

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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Elements of MATLAB Style

Style is an important aspect of writing, and also of programming. While MATLAB is a quick and easy language in which to program, style should not be neglected. Good style aids readability, which in turn makes it easier to debug … Continue reading

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What’s New in MATLAB R2017a?

MATLAB R2017a was released last week. Many of the changes reported in the release notes are evolutionary, building on and extending major new features introduced previously. For example, the Live Editor continues to gain expanded capabilities. In this post I … Continue reading

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Tracing the Early History of MATLAB Through SIAM News

A recent blog post by Ned Gulley points out that the new mathematics gallery (“Mathematics: The Winton Gallery”) at the Science Museum, London, contains a copy of the disk and manual for MATLAB 1.3, from 1985, sitting next to a … Continue reading

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Preparing CMYK Figures for Book Printing

All printing is done in CMYK, the color space based on the four colors cyan, magenta, yellow, and black. Figures that we generate in MATLAB and other systems are invariably saved in RGB format (red, green, blue). When we send … Continue reading

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Good Times in MATLAB: How to Typeset the Multiplication Symbol

The MATLAB output >> A = rand(2); whos Name Size Bytes Class Attributes A 2×2 32 double will be familiar to seasoned users. Consider this, however, from MATLAB R2016b: >> s = string({‘One’,’Two’}) s = 1×2 string array “One” “Two” … Continue reading

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MATLAB Guide, Third Edition (2017)

The third edition of MATLAB Guide, which I co-wrote with Des Higham, has just been published by SIAM. It is a major update of the second edition (2005) to reflect the many changes in MATLAB over the last twelve years, … Continue reading

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Hyphenation Question: Row-wise or Rowwise?

Sam Clark of T&T Productions, the copy editor for the third edition of MATLAB Guide (co-authored with Des Higham and to be published by SIAM in December 2016), recently asked whether we would like to change “row-wise” to “rowwise”. A … Continue reading

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What’s New in MATLAB R2016b

MATLAB R2016b was released in the middle of September 2016. In this post I discuss some of its new features (I will not consider the toolboxes). This is personal selection of highlights; for a complete overview see the Release Notes. … Continue reading

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Implicit Expansion: A Powerful New Feature of MATLAB R2016b

The latest release of MATLAB, R2016b, contains a feature called implicit expansion, which is an extension of the scalar expansion that has been part of MATLAB for many years. Scalar expansion is illustrated by >> A = spiral(2), B = … Continue reading

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