Category Archives: software

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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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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The One-Line Maze Program in MATLAB

A classic one-line program for the Commodore 64 microcomputer is 10 PRINT CHR$(205.5+RND(1)); GOTO 10 This is essentially what was printed in the section “Random Graphics” of the Commodore 64 User’s Guide (1982). The program prints a random maze that … Continue reading

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Iterating MATLAB Commands

Some MATLAB commands can be “applied to themselves”. A good example is help help, which provides help on the help function. For what other functions fun is fun fun a legal statement that produces something interesting? Here are some examples … Continue reading

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Programming the Commodore PET

My first programming languages were Fortran, learned in my mathematics degree, and Basic, which was the language built into the ROM (read only memory) of the Commodore PET. The PET—one of the early microcomputers, first produced in 1977—stored programs on … Continue reading

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Updated Catalogue of Software for Matrix Functions

Edvin Deadman and I have updated the catalogue of software for matrix functions that we produced in 2014 (and which was discussed in this post). The new version, which has undergone some minor reorganization, is available here. It covers what … Continue reading

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Manchester 1970s Video Computer Science Lectures

At The University of Manchester nowadays, every lecturer is a podcaster. Sound from microphones and projected material is automatically recorded in lecture rooms, enabling registered students to revisit a lecture at any time after it has been given. These recording … Continue reading

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Typewriter Art

In 1981 my mother showed me a magazine (Woman’s Realm) that had instructions for producing on a typewriter a portrait of Prince Charles. The instructions had been designed by Bob Neill, who had worked out how represent a photograph of … Continue reading

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My Mac Setup

I came to Macs quite late, switching to Mac laptops in 2009 because of the quality of the hardware. Over the last year I have taken my 13-inch MacBook Pro Retina to China, the USA and Europe. With the World … Continue reading

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