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|{{quote | "I have long been struck by the contrast between the success with which the adventurous learn APL by simply using it, and the frequent failure of lecture courses to communicate the simplicity and applicability of the language."|[[Ken Iverson]]. ''A Working Introduction to APL'', 1981.}}
|{{quote | "I have long been struck by the contrast between the success with which the adventurous learn APL by simply using it, and the frequent failure of lecture courses to communicate the simplicity and applicability of the language."|[[Ken Iverson]]. ''A Working Introduction to APL'', 1981.}}
|}
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== Introductions ==
== For non-programmers ==
=== For non-programmers ===


Some of the best resources for somebody new to APL and programming in general are:
Some of the best resources for somebody new to APL and programming in general are:
* APL Wiki's [[simple examples]]
* The [https://tryapl.org/?tab=3 Learn tab on TryAPL]
* The [https://tryapl.org/?tab=3 Learn tab on TryAPL]
* The book [https://www.dyalog.com/mastering-dyalog-apl.htm Mastering Dyalog APL] by Bernard Legrand
* The book [https://www.dyalog.com/mastering-dyalog-apl.htm Mastering Dyalog APL] by Bernard Legrand
* The APL Cultivation [https://chat.stackexchange.com/rooms/info/52405/the-apl-orchard?tab=conversations Stack Exchange Lessons]
* The [https://tutorial.dyalog.com Zark APL Tutor]
* The [https://tutorial.dyalog.com Zark APL Tutor]
 
* APL a Day: [https://www.sacrideo.us/apl-a-day-0-introduction/ Introduction], [https://www.sacrideo.us/apl-a-day-1-functions/ Functions], [https://www.sacrideo.us/apl-a-day-2-arrays-values/ Arrays, Values], [https://www.sacrideo.us/apl-a-day-3-arrays-have-shape/ Arrays have Shape]
Follow one or a couple of these tutorials through and play around a bit. To learn APL the advice is similar to that for learning other languages: have a goal (something you want to accomplish) and try to do it. Along the way you are sure to come across the pitfalls and gotchas of the language, and with time you may come to understand what APL thinking means.
Follow one or a couple of these tutorials through and play around a bit. To learn APL the advice is similar to that for learning other languages: have a goal (something you want to accomplish) and try to do it. Along the way you are sure to come across the pitfalls and gotchas of the language, and with time you may come to understand what APL thinking means.


If you get stuck, don't hesitate to ask your questions in the [[APL Orchard]] chat room.
If you get stuck, don't hesitate to ask your questions in the [[APL Orchard]] chat room.


=== For non-APL programmers ===
== For non-APL programmers ==


This is a list of tutorials and other resources of interest to someone who knows about programming or is familiar with another programming language, but wants to learn more about APL.
This is a list of tutorials and other resources of interest to someone who knows about programming or is familiar with another programming language, but wants to learn more about APL.
 
<div style="column-width:20em">
* [https://chat.stackexchange.com/rooms/info/52405/the-apl-orchard?tab=conversations Stack Exchange Lessons]
* APL Wiki's [[advanced examples]]
* [https://tryapl.org TryAPL]
* [https://chat.stackexchange.com/rooms/info/52405/the-apl-orchard?tab=conversations APL Cultivation] (chat lessons)
* [https://github.com/nooodl/learnxinyminutes-docs/blob/master/apl.apl LearnXinYminutes]
* [https://tryapl.org TryAPL online interpreter with lessons]
* [https://theburningmonk.com/2015/06/fear-and-loathing-with-apl/ Fear and Loathing with APL Learn APL in 10 minutes]
* [https://github.com/nooodl/learnxinyminutes-docs/blob/master/apl.apl Learn X in Y minutes]
* [https://aplwiki.com/AplIn20Minutes APL in 20 Minutes]
* [https://theburningmonk.com/2015/06/fear-and-loathing-with-apl/ Fear and Loathing with APL]
* [https://www.whoishostingthis.com/resources/apl/ A Short Intro to APL]
* [https://www.whoishostingthis.com/resources/apl/ A Short Intro to APL]
* [https://codeburst.io/lets-learn-a-programming-language-5f374e4abae5 Let's Learn A Programming Language]
* [https://codeburst.io/lets-learn-a-programming-language-5f374e4abae5 Let's Learn A Programming Language]
* [https://aplwiki.com/BooksAndPublications APLWiki list of Books and Publications]
* APLWiki list of Books and Publications <span style="background:yellow"> ← Migrate https://aplwiki.com/BooksAndPublications</span>
* [https://www.dyalog.com/mastering-dyalog-apl.htm   Mastering Dyalog APL]
* [https://www.dyalog.com/mastering-dyalog-apl.htm Mastering Dyalog APL]
* [https://github.com/mhaupt/mastering_dyalog_apl GitHub repository]
* [https://github.com/mhaupt/mastering_dyalog_apl GitHub repository]
* [https://tutorial.dyalog.com/ Tutorial]
* [https://tutorial.dyalog.com/ Zark tutorial]
* [https://github.com/vendethiel/trying.apl Trying APL - Basic APL snippets demonstrating function and operator behaviour]
* [https://github.com/vendethiel/trying.apl Trying APL]
* [https://github.com/annser/annser Artificial Neural Networks on the Raspberry Pi]
* [https://github.com/annser/annser Artificial Neural Networks]
* [https://codeburst.io/fizzbuzz-in-apl-a193d1954b4b FizzBuzz in APL]
* [https://codeburst.io/fizzbuzz-in-apl-a193d1954b4b FizzBuzz]
</div>
[[Category:Lists]]


[[Category:Lists]]
== For novice APLers ==
 
If you already have a fair grasp of APL's [[primitive function]]s and [[primitive operator|operators]], you can sharpen your skills by challenging yourself with these:
 
* APL Crosswords: [https://abrudz.github.io/crosswords/1/ 1] [https://abrudz.github.io/crosswords/4/ 4] [https://abrudz.github.io/crosswords/5/ 5] — Fill in expressions and snippets to fulfil all the clues.
 
* [https://www.dyalog.com/2016-year-game.htm 2016 Year Game]: Find APL expressions involving exactly the digits 2 0 1 6 in that order to equal the numbers 0 to 100.
 
* [https://www.dyalog.com/2017-code-golf-challenge.htm 2017 Code Golf Challenge]: Find the shortest possible APL expression that evaluates 1…52 without using any number or character literals.
 
* [https://www.dyalog.com/student-competition.htm APL Problem Solving Competition]s — Try to solve past years' problems.


=== For novice APLers ===
== For old APLers ==
In the last decade, several implementations have extended APL with new primitives:
=== Primtives ===
Functions: <source lang=apl inline>⊢</source> [[Identity|Same]], [[Right_identity|Right]];
<source lang=apl inline>⊣</source> [[Identity|Same]], [[Left_identity|Left]];
<source lang=apl inline>⌷</source> [[Materialise]], [[Squad indexing|Index]];
<source lang=apl inline>≡</source> [[Depth]], [[Match]];
<source lang=apl inline>≢</source> [[Tally]], [[Not Match]];
<source lang=apl inline>⍸</source> [[Where]], [[Interval Index]];
<source lang=apl inline>⊆</source> [[Nest]], [[Partition]]


[[Intermediate APL]]
Operators: <source lang=apl inline>∘</source> [[Bind]], [[Compose]];
<source lang=apl inline>⍤</source> [[Rank operator|Rank]];
<source lang=apl inline>⌸</source> [[Key]];
<source lang=apl inline>⌺</source> [[Stencil]];
<source lang=apl inline>⍠</source> [[Variant]]
=== Lambdas ===
* [http://help.dyalog.com/16.0/Content/Language/Defined%20Functions%20and%20Operators/DynamicFunctions/Dynamic%20Functions%20and%20Operators.htm Intro]
* [http://help.dyalog.com/latest/Content/Language/Defined%20Functions%20and%20Operators/DynamicFunctions/MultiLine%20Dynamic%20Functions.htm Details]
* [http://help.dyalog.com/latest/Content/Language/Defined%20Functions%20and%20Operators/DynamicFunctions/Dynamic%20Operators.htm Operators]


=== For old APLers ===
=== Tacit programming ===
{{Main|Tacit programming}}
* [[Dyalog APL]] documentation: [http://help.dyalog.com/16.0/Content/RelNotes14.0/Function%20Trains.htm Intro], [http://help.dyalog.com/latest/Content/Language/Introduction/Trains.htm Details]


[[Modern APL for old APLers]]
* Videos: [https://www.youtube.com/watch?v=kt4lMZbn-so Short], [https://www.youtube.com/watch?v=A2LqqBosvY0 Long]


== How to's ==
* APL Cultivation lesson: [https://chat.stackexchange.com/rooms/52405/conversation/lesson-23-transcribing-to-and-reading-trains Transcribing to and reading trains]


=== Error trapping ===
=== Other features  ===
* [[Keyword]]s
* [[Object-oriented programming]]


{{Main|Error trapping in Dyalog APL}}
== How to's for advanced APLers ==


=== Graphical User Interfaces ===
* [[Error trapping with Dyalog APL]]


=== Calling APL from other languages ===
* [[Error trapping in Dyalog APL forms]]


=== Calling other languages from APL ===
* [[Calling APL from other languages]]


=== Performance tuning ===
* [[Calling other languages from APL]]


=== APL on the web ===
* [[Performance tuning]]


=== Parallel computing ===
* [[APL on the web]]


=== Cryptography ===
* [[Parallel computing]]


Migrate https://aplwiki.com/CryptographyWithDyalogAndDotNet
* [[Cryptography]] <span style="background:yellow">← Migrate https://aplwiki.com/CryptographyWithDyalogAndDotNet</span>


{{APL programming language}}
{{APL development}}

Revision as of 12:53, 13 January 2020

"I have long been struck by the contrast between the success with which the adventurous learn APL by simply using it, and the frequent failure of lecture courses to communicate the simplicity and applicability of the language."

Ken Iverson. A Working Introduction to APL, 1981.

For non-programmers

Some of the best resources for somebody new to APL and programming in general are:

Follow one or a couple of these tutorials through and play around a bit. To learn APL the advice is similar to that for learning other languages: have a goal (something you want to accomplish) and try to do it. Along the way you are sure to come across the pitfalls and gotchas of the language, and with time you may come to understand what APL thinking means.

If you get stuck, don't hesitate to ask your questions in the APL Orchard chat room.

For non-APL programmers

This is a list of tutorials and other resources of interest to someone who knows about programming or is familiar with another programming language, but wants to learn more about APL.

For novice APLers

If you already have a fair grasp of APL's primitive functions and operators, you can sharpen your skills by challenging yourself with these:

  • APL Crosswords: 1 4 5 — Fill in expressions and snippets to fulfil all the clues.
  • 2016 Year Game: Find APL expressions involving exactly the digits 2 0 1 6 in that order to equal the numbers 0 to 100.
  • 2017 Code Golf Challenge: Find the shortest possible APL expression that evaluates 1…52 without using any number or character literals.

For old APLers

In the last decade, several implementations have extended APL with new primitives:

Primtives

Functions: Same, Right; Same, Left; Materialise, Index; Depth, Match; Tally, Not Match; Where, Interval Index; Nest, Partition

Operators: Bind, Compose; Rank; Key; Stencil; Variant

Lambdas

Tacit programming

Main article: Tacit programming

Other features

How to's for advanced APLers


APL development [edit]
Interface SessionTyping glyphs (on Linux) ∙ FontsText editors
Publications IntroductionsLearning resourcesSimple examplesAdvanced examplesMnemonicsISO 8485:1989ISO/IEC 13751:2001A Dictionary of APLCase studiesDocumentation suitesBooksPapersVideosAPL Quote QuadVector journalTerminology (Chinese, German) ∙ Neural networksError trapping with Dyalog APL (in forms)
Sharing code Backwards compatibilityAPLcartAPLTreeAPL-CationDfns workspaceTatinCider
Implementation ResourcesOpen-sourceMagic functionPerformanceAPL hardware
Developers Timeline of corporationsAPL2000DyalogIBMIPSASTSC