DYNA26: 27 April 2026. More info

The Dyalog Blog

275 blog posts in 36 categories covering APL insights, company news and events, innovative projects, and more.

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In one man’s humble opinion, reduction (⌿) is the Queen of Operators. Each (¨) comes a close second, but doesn’t get the cigar because each can… Read
Logo of the APL Problem Solving Competition, showing a stylised grey brain-shaped maze with a circular target symbol on the left hemisphere.
The winners of the 2014 APL Problem Solving Competition were recognized at the Dyalog ’14 user meeting and had a chance to share their… Read
Abstract grid of coloured squares with teal, amber and gold bokeh lights, evoking a comparison matrix and a sense of acceleration.
The first e-mail of the work week came from Nicolas Delcros. He wondered whether anything clever can be done with ∘.≡ on enclosed character strings. I… Read
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Operator trace from dfns.dws is a simple and low-tech tool for displaying intermediate results of functions, during the evaluation of an expression. For… Read
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ACKNOWLEDGEMENT: My thanks to Andy Shiers for simplifying the examples Visitors to APL from other languages are sometimes a bit sniffy about our use of numbers… Read
Two images of John Daintree side by side during his Dyalog ’14 presentation, demonstrating a shear transformation — one upright and the other rotated diagonally against a light background.
Recent versions of Microsoft Windows support touch screens, which of course means that applications can respond to events originating from touches. Microsoft… Read
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Technical advice and assistance on all aspects of Dyalog usage is available by e-mail (support@dyalog.com) and/or telephone (+44 1256 830030 – limited to U.K. office hours). Limited advice on design and coding is available, but is not intended to replace the use of the printed and on-line documentation. Except when reporting an issue with the software, users are encouraged to seek advice from the user community via the Dyalog Forum (reading the content of the forums does not require membership).

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