Adám Brudzewsky

DYNA26: 27 April 2026. More info

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Head of Language Design

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Adám is a member of the Dyalog Tools Group. He writes (and helps cutomers to write) APL, implements and maintains parts of our system that are written in APL, teaches APL, and creates materials for demonstration purposes. More about Adám

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ECOOP 2025 – Presenting APL Standards and Array Notation

The European Conference on Object-Oriented Programming (ECOOP), Europe’s longest-standing annual programming languages conference, brings together researchers, practitioners, and students to share their ideas and experiences in all topics related to programming languages, software development, systems, and applications. Every year, ECOOP happens at a new location, and this year it was held on the main campus of Western … Read

Jul 2025
in Events

Numeric Case Conversion

Dyalog version 18.0, released in June 2020, introduced the Case Convert system function ⎕C. It was a replacement for the long-lived (since version 15.0, from June 2016) I-beam 819⌶, which was then deprecated. (By the way, did you know that the digits 819 were chosen to be reminiscent of the letters BIg as in big … Read

Apr 2024
in Recreational

The APL Quest Series

It seemed like a normal Friday until mid-afternoon. But on 4 February 2022, I embarked on a journey that, at the time, seemed to stretch impossibly far into the future — a future that wasn’t entirely known yet. In the APL Orchard chat room on Stack Exchange, a dozen APLers, some experts and some newbies, … Read

Dyalog Version 18.4.1

During the recent APL Seeds ’22 meeting, it was suggested that we introduce keywords that could be used as an alternative to APL symbols. Several historical APL systems have provided such mechanisms. However, rather than adopting one of the old keyword schemes, we have decided to go for a more future-proof solution, recognising that the … Read

Apr 2022
in Recreational

Enhanced Debugging with Function Keys – Evaluate selection

See also Enhanced Debugging with Function Keys. When tracing through a complex dfn and reaching a guard (condition:result), I am often wary of tracing into that line because if the condition evaluates to 1 then the current function I’m tracing through will terminate and return the result, leading to me losing situational awareness. Normally, I’d … Read

Dec 2020
in Tips & Tricks, Tools

Enhanced Debugging with Function Keys

Sometimes I want an additional functionality in the IDE. (Are you a RIDE user? We’ll cover that too!) For example, the other day, I was tracing through some very long functions to find an error which was being caught by a trap. Since the error was being caught, I couldn’t just let the function run … Read