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Computer History Museum releases PostScript source

The Computer History Museum, in conjunction with Adobe, has released the PostScript source code. Here is the release, with some helpful historical context and several photos: The story of PostScript has many different facets. It is a story about profound changes in human literacy as well as a story of trade secrets within source code. It is a story...

The Verse Calculus: a Core Calculus for Functional Logic Programming

The Verse Calculus: a Core Calculus for Functional Logic Programming https://simon.peytonjones.org/assets/pdfs/verse-conf.pdf LENNART AUGUSTSSON, Epic Games, Sweden JOACHIM BREITNER KOEN CLAESSEN, Epic Games, Sweden RANJIT JHALA, Epic Games, USA SIMON PEYTON JONES, Epic Games, United Kingdom OLIN SHIVERS, Epic Games, USA/li> TIM SWEENEY,...

LtU is now running in a new, more stable environment

LtU has experienced a long period of downtime recently. Its software infrastructure was outdated enough that it became difficult to maintain when problems arose. It has now been migrated to a brand new environment. It should be much more stable from now on.

Graydon Hoare: 21 compilers and 3 orders of magnitude in 60 minutes

In 2019, Graydon Hoare gave a talk to undergraduates (PDF of slides) trying to communicate a sense of what compilers looked like from the perspective of people who did it for a living. I've been aware of this talk for over a year and meant to submit a story here, but was overcome by the sheer number of excellent observations. I'll just summarise the...

Latent Effects for Reusable Language Components

Latent Effects for Reusable Language Components, by Birthe van den Berg, Tom Schrijvers, Casper Bach Poulsen, Nicolas Wu: The development of programming languages can be quite complicated and costly. Hence, much effort has been devoted to the modular definition of language features that can be reused in various combinations to define new languages...

Introducing PathQuery, Google's Graph Query Language

Introducing PathQuery, Google's Graph Query Language We introduce PathQuery, a graph query language developed to scale with Google's query and data volumes as well as its internal developer community. PathQuery supports flexible and declarative semantics. We have found that this enables query developers to think in a naturally "graphy" design space...

Google announces Logica: organizing your data queries, making them universally reusable and fun

You can read more about it at the Google Open Source blog post, Logica: organizing your data queries, making them universally reusable and fun. They advocate for datalog-like language they developed internally at Google. The reason? Good programming is about creating small, understandable, reusable pieces of logic that can be tested, given names,...

Coq will be renamed

From the Coq-club: The Coq development team acknowledges the recent discussions (started on the Coq-Club mailing list) around Coq's logo and name. We wish to thank everyone that participated in these discussions. Testimonies from people who experienced harassment or awkward situations, reports about students (notably women) who ended up not learning...

LAMBDA: The ultimate Excel worksheet function

Post by Andy Gordon and Simon Peyton Jones on LAMBDA giving Excel users the ability to define functions. Ever since it was released in the 1980s, Microsoft Excel has changed how people organize, analyze, and visualize their data, providing a basis for decision-making for the millions of people who use it each day. It’s also the world’s most widely...

Google Brain's Jax and Flax

Google's AI division, Google Brain, has two main products for deep learning: TensorFlow and Jax. While TensorFlow is best known, Jax can be thought of as a higher-level language for specifying deep learning algorithms while automatically eliding code that doesn't need to run as part of the model. Jax evolved from Autograd, and is a combination of...

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