The array-programming languages chapter operates as a sub-group of ACM's SIGPLAN: the Special Interest Group on Programming LANguages.

Upcoming APL & Functional Programming Events

TFP 2016: Symposium on Trends in Functional Programming, June 8-10, 2016

The 17th symposium on trends in functional programming will be held on June 8-10, 2016 at the University of Maryland, College Park, Maryland (near Washington DC). This is an international forum for researchers with interests in all aspects of functional programming, taking a broad view of current and future trends in the area. It aspires to be a lively environment for presenting the latest research results, and other contributions. Draft papers will be accepted until April 8th, 2016. More information may be found here.

TFP 2016 will be accompanied by the International Workshop on Trends in Functional Programming in Education (TFPIE), which will take place on June 7th.

Array 2016 Workshop, June 14, 2016 in Santa Barbara, California

The aim of this workshop for array-oriented programming is to foster the cross-pollination of concepts across projects and research communities and to explore new directions as outlined here.

NYCJUG Meeting - Tuesday, June 14th, 2016

The New York City J Users Group will hold its regular monthly meeting on Tuesday, June 14th, at 6:30 pm, at the Heartland Brewery in the basement of the Empire State Building at 34th Street and Fifth Avenue in New York, New York. Take a look at our meeting notes and our Meetup page.

PLDI 2016: June 13 - 17, 2016 in Santa Barbara, California

"PLDI 2016" is the 37th annual ACM SIGPLAN conference on Programming Language Design and Implementation. This is the premier forum for all areas of programming language research, including the design, implementation, theory, and efficient use of languages. PLDI’s emphases include innovative and creative approaches to compile-time and runtime technology, novel language designs and features, and results from implementations.

Strange Loop 2016: September 15-17, 2016

The Strange Loop conference will take place at the Peabody Opera House in St. Louis, Missouri, on September 15th-17th, 2016. The 15th is an optional, preconference day; most preconference events require pre-registration and an additional fee. This conference presents an opportunity to make connections with the creators and users of the languages, libraries, tools, and techniques at the forefront of the industry.

Tracy Harms spoke about J at this conference in 2014, so this may be a receptive audience for APL ideas. The Strange Loop Call for Presentations will open in April, 2016. Look here for more details.

International Conference on Functional Programming, September 18th-24th, 2016

ICFP 2016, which will take place in Nara, Japan, provides a forum for researchers and developers to discuss the latest work on the design, implementations, principles, and uses of functional programming, covering a wide spectrum of work, from practice to theory, including their peripheries. Look here for more details.

Functional Programming eXchange 2016, Wednesday, October 5th

The Functional Programming eXchange, which will take place at CodeNode in London, England, is a celebration of the discoveries and the triumphs of the functional community. As well as showcasing some of the most innovative advances, the Functional Programming eXchange is an arena to explore common engineering challenges that we face in our industry. Simon Peyton Jones, a key contributor to the functional language Haskell, will be speaking. Look here for more information.

Dyalog '16: October 9th-13th, 2016 in Glasgow, Scotland

The Dyalog '16 APL conference will be held in Glasgow, Scotland this year. Check here for more details.

Recent APL-relevant Events:

Functional Programming eXchange 2016, Friday, May 27th

The Functional Programming eXchange, which took place at CodeNode in London, England, was a celebration of the discoveries and the triumphs of the functional community. As well as showcasing some of the most innovative advances, the Functional Programming eXchange is an arena to explore common engineering challenges that we face in our industry. Look here for information on the next event.

LambdaConf 2016, May 26th-29th

LambdaConf,which took place from Thursday, May 26, 2016 through Sunday, May 29 in Boulder, Colorado, is the one of the largest and most respected conferences on functional programming in the world.

Introduction to APL, May 23rd-27th

This course, oriented to Dyalog APL, was held in the Dyalog head office in Bramley, UK from Monday, May 23rd to Friday, May 27th. Look here for more details.

Computationally Assisted Mathematical Discovery and Experimental Mathematics, May 12th-15th

The ACMES (Algorithms and Complexity in Mathematics, Epistemology, and Science) conference on computational discovery was held at Western University, London, Ontario, Canada from May 12-15, 2016. The conference focused on the use of symbolic and numerical computation to discover numeric patterns and to gather evidence for specific mathematical assertions. More information may be found here.

2016 North American Dyalog User Meeting, April 18th-19th 2016

The meeting was held at the Crowne Plaza in Princeton, NJ, USA. The programme can be found here.

NYCJUG Meeting - Tuesday, May 10th, 2016

The New York City J Users Group held its regular monthly meeting on Tuesday, May 10th, at 6:30 pm, at the Heartland Brewery in the basement of the Empire State Building at 34th Street and Fifth Avenue in New York, New York.

Swed APL, Copenhagen, Denmark, April 1st, 2016

This free, one-day conference on "Concurrency in APL", was held in Copenhagen, Denmark, on Friday, April 1st, 2016. More information can be found here.

NY Open Statistical Programming Meetup, March 16th, 2016

On Wednesday, March 2016 at 6:30 pm, Devon McCormick gave a talk titled "Introductory Survey of Bayesian Methods Considering Dynamic Linear Models" at the offices of eBay, NYC, at 625 Sixth Avenue, 3rd floor. The talk covered the basics of Bayesian statistics with examples and demonstrations. Code in R and J was presented to illustrate basic Bayesian probability calculations. Additionally, the talk touched on a number of areas where Bayesian methods are applied, including Bayesian networks and Markov-chain Monte Carlo methods, but with special attention to Dynamic Linear Models for forecasting. Look here for slides (pdf) from the talk and here for links for further exploration of the topics mentioned.

Code Mesh 2015 - November 2nd-4th, 2015

Code Mesh 2015, held in London, England, is the alternative programming conference, focussing on promoting useful non-mainstream technologies to the software industry. More information here.

Lambda Hackathon - October 15th, 2015

Took place in Helsinki, Finland. This was a functional programming event lasting 12 hours - use whatever functional language you like. More information here.

IFL - 2015 - Functional Languages Conference - September 14th-16th

IFL 2015 took place on 14-16 September 2015 in Koblenz on the campus of University of Koblenz-Landau. More information here.

Dyalog '15 User Meeting

The 2015 Dyalog user meeting took place in Sicily, Italy, from September 6th through September 10th (Sunday-Thursday), 2015, at the Atahotel Naxos Beach. Notes and slides from the talks may be found here.


Run APL in a browser and use APL in web-page development

Paul L. Jackson's browser-based APL can be installed locally and used to design, display, and test web pages from the APL development environment.

J version 8.04 Released

The latest version of the J language, 8.04, is freely downloadable. This version adds numerous Qt features. Look here for more information. J is available for these platforms:
  • Windows
  • Mac OS X
  • Linux
  • Android
  • Raspberry Pi
  • Dyalog Version 14.1 Released

    Version 14.1 of Dyalog APL will be available on all supported platforms and will features full support for Mac OS as well as a cross-platform platform graphical development environment. Look here for more details.

    APL+Win Version 15.1 Released

    This latest version in the APL2000 product line adds numerous enhancements and several bug fixes. See this (pdf) for more details.

    Dyalog APL Problem Solving Competition Winners Announced

    The 2015 Dyalog APL Problem Solving Competition winners have been announced.

    Morten Kromberg's Dyalog APL Talk at Google

    Morton Kromberg, CTO of Dyalog APL, gave a talk at Google on June 16, 2015. The video is availablehere.

    New Vocabulary Page for J

    A community effort led by Ian Clark has produced a new version of the J dictionary called "The Accessible Dictionary". This color-coded, single-page listing of the symbols and names of the entire J Language has been designed to complement the more traditional J Dictionary.

    New Release of Eli: Compiled APL

    "ELI", a system for programming with arrays, with most of the functionality of ISO APL but with extended data types like non-homogenous arrays, complex numbers, and temporal data, is freely available on Windows, Linux, and Mac OS. The language has a compiler as well as an interpreter and SQL statements. Visit the Eli homepage and take a look at this article in Vector for more details.

    Source of JavaScript Implementation of APL Available on Github

    The source code for the above-mentioned implementation of APL - "NGN APL" - that will run in a browser, is here. It is written in CoffeeScript, a language that "compiles" to JavaScript.

    Gnu Open-source APL Released

    GNU APL is a free interpreter for which the source code is available. It is written and is being maintained by Jürgen Sauermann under a Gnu license. It is aimed at a Linux environment but compiles under Cygwin for a Windows environment.

    Waterloo APL Archive

    The Waterloo APL Archive has been resurrected here. These links have not been tested thoroughly, so please report any problems to us.

    Graphical J Sentence Analyzer

    Announcing a graphical sentence debugger for J: wouldn't it be great if you could actually see how a sentence executes? Instead of puzzling over some expressions like this:
       z =. 100 200 300
       +/ z + i. 3 3
    609 612 615
    you can see a picture like this:

    graphical representation of a J phrase