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Articles
July 21, 2016

A Question of Character

I've used APL for over 35 years and one of the recurring criticisms of APL is its non-standard character set – its use of “funny” symbols. This got me to…
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Articles
June 20, 2016

Boolean Reductions

Most experienced APLers could list a number of boolean scans, some more than others, that they can include in algorithms, confident that they will fulfill a particular task. Some of…
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Articles
June 14, 2016

APL – A Tool of Thought

I am often asked “what is APL good for”? I reply that APL is good for almost anything but that it is also very good at prototyping. With it you…
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Articles
June 10, 2016

How Big is 2^64?

One grain of rice is placed on the first square of an 8 by 8 chessboard, two grains on the next square, four grains on the next, and so on,…
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Articles
June 1, 2016

Impending kOS

It began badly. We were walking along the South Downs Way in early summer, the sun glittering on the English Channel on our right, the Weald of Sussex stretching away…
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Articles
June 1, 2015

Who was Ken Iverson?

For the best memorial, die while your colleagues have energy to write. With this issue Vector at last commemorates the life and work of Dr Kenneth E. Iverson. We had…
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