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Revision as of 14:35, 20 September 2019

This wiki is all about APL, an array-oriented programming language. It has a powerful, concise syntax that lets you develop shorter programs that enable you to think more about the problem you're trying to solve rather than how to express it to a computer.

Running APL

Main article: Running APL

Traditionally a commercial language, there are now quite a few APL dialects available to download for free without feature limitations, and most of these can be tried online without installing anything.

Who are you?

I am new to programming

I am a programmer but new to APL

I want to learn intermediate APL

I'm an old APLer who wants to learn modern APL

Who uses APL?

There are many case studies of both hobby and real-world APL applications.

There is a popular APL chat room on Stack Exchange.

There are active user groups all around the globe, many of these hold regular in-person meet-ups.

Examples

APL's terseness means that substantial programs are expressable in a small space, relative to many other programming languages. Here are some examples:

Split text by delimiter

      ','(≠⊆⊢)'comma,delimited,text'
┌─────┬─────────┬────┐
│comma│delimited│text│
└─────┴─────────┴────┘

Works in: Dyalog APL, dzaima/APL, NARS2000, ngn/apl

Conway's "Game of Life"

John Scholes is famous for the following implementation of Conway's "Game of Life":

      ⎕←world←2 2 2 2⊤0 12 5 2 4 1
0 1 0 0 0 0
0 1 1 0 1 0
0 0 0 1 0 0
0 0 1 0 0 1
      {↑1 ⍵∨.∧3 4=+/,¯1 0 1∘.⊖¯1 0 1∘.⌽⊂⍵} world
1 1 0 1 0 0
0 1 1 1 0 0
0 1 0 1 1 0
0 0 1 0 0 0

Works in: Dyalog APL, dzaima/APL, GNU APL, NARS2000, ngn/apl

Template:APL programming language

APL community [edit]
Activities	Conferences ∙ User groups and meetups ∙ Iverson Award ∙ Exercises
Chat rooms and forums	APL Farm ∙ APL Orchard ∙ APL Wiki
People	Phil Abrams ∙ Brian Becker ∙ Bob Bernecky ∙ Larry Breed ∙ Charles Brenner ∙ Jim Brown ∙ Adám Brudzewsky ∙ Gitte Christensen ∙ Peter Donnelly ∙ John Earnest ∙ Adin Falkoff ∙ Garth Foster ∙ Lib Gibson ∙ Aaron Hsu ∙ Roger Hui ∙ Ken Iverson ∙ Morten Kromberg ∙ Dick Lathwell ∙ Marshall Lochbaum ∙ Eugene McDonnell ∙ Roger Moore ∙ Trenchard More ∙ Alan Perlis ∙ Raghu Ranganathan ∙ Henry Rich ∙ Al Rose ∙ John Scholes ∙ Ian Sharp ∙ Bob Smith ∙ Geoff Streeter ∙ Joey Tuttle ∙ Arthur Whitney
Other	APL Trust ∙ APL Quote Quad ∙ Blogs ∙ Books ∙ Case studies ∙ Famous APL users ∙ Humour ∙ Jobs ∙ Merchandise ∙ Papers ∙ Podcasts ∙ TryAPL ∙ Try It Online ∙ Video channels

@@ Line 3: / Line 3: @@
 == Running APL ==
-''Main article: [[Running APL]]''
+{{Main|Running APL}}
 Traditionally a commercial language, there are now quite a few APL dialects available to download for free without feature limitations, and most of these can be tried online without installing anything.
 == Who are you? ==