TL;DR
The authoritative book ‘Mastering Dyalog APL’ is being updated with a new online, interactive version to better serve learners amid evolving Dyalog APL development. The project includes a rework of the original content and plans for a printed edition.
The ‘Mastering Dyalog APL’ book is being reworked into a more interactive, online format to adapt to the evolving Dyalog APL language and meet modern learning needs.
The original ‘Mastering Dyalog APL,’ published in 2009 by Bernard Legrand, remains the de facto standard for learning Dyalog APL. However, as the language has advanced, the book has become increasingly outdated. To address this, a rework is underway, hosted on GitHub, which includes an interactive version built with Jupyter Notebooks and updated explanations.
This rework is led by Rodrigo Girão Serrão, who has incorporated contributions from GitHub users and feedback from the community. The new online resource is considered a work in progress, with missing chapters and sections, and may undergo significant revisions before completion. A printed edition is also planned to offer a tangible resource for learners who prefer physical books.
Why It Matters
This development is significant because it reflects ongoing efforts to modernize and democratize learning of Dyalog APL, a language valued for its concise syntax and powerful array processing capabilities. Learn more about creating effective multi-step forms for interactive learning. The transition to interactive, up-to-date resources aims to attract new users and support existing ones in mastering the language amid rapid technological change.
Mastering Dyalog APL: A Complete Introduction to Dyalog APL
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Background
The original ‘Mastering Dyalog APL’ was first published in 2009, with subsequent updates to match new versions of the language, notably Dyalog APL 12.0. As the language has evolved, the static book has struggled to keep pace, prompting the creation of more dynamic, accessible learning tools. The current project responds to the need for continuous, community-supported updates and interactive learning environments.
“This rework aims to provide a more engaging and up-to-date learning experience for Dyalog APL users.”
— Rodrigo Girão Serrão
“The first edition remains a valuable resource, but the language’s evolution necessitates ongoing updates.”
— Bernard Legrand
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What Remains Unclear
It is not yet clear when the full online version will be completed or how extensively it will cover new features introduced after 2009. The scope of future updates and the final format of the printed edition remain under development.
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What’s Next
The project team plans to continue revising and expanding the online resource, with regular updates based on community feedback. A scheduled release date for the complete version and the printed edition has not been announced, but further milestones are expected over the coming months.
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Key Questions
Will the new online version replace the original book?
The online version aims to supplement and eventually replace the static book as the primary learning resource, offering more interactivity and updates.
How can I contribute or provide feedback?
Users can open issues or send feedback via GitHub or email to mdapl@dyalog.com to suggest corrections or improvements.
Will there be a printed edition available?
Yes, a printed version is planned to complement the online resources, catering to those who prefer traditional books.
What new topics or features will the updated version include?
The scope of new content is still being defined, but it will cover recent language features and provide more interactive examples.
Source: Hacker News
