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{{Built-in|Atomic vector|⎕AV}} is the name of a 256-[[character]] [[vector]] which containes the entire character set of older APL implementations that did not support [[Unicode]], but instead used a single byte to store each character. Its value varies wildly between dialects, and can even differ between editions of the same dialect. For example, the mainframe and personal computer editions of [[APL2]] have slightly different character sets.
{{Built-in|Atomic vector|⎕AV}} is the name of a 256-[[character]] [[vector]] which contains the entire character set of older APL implementations that did not support [[Unicode]], but instead used a single byte to store each character. Its value varies wildly between dialects, and can even differ between editions of the same dialect.
 
[[Standards|ISO/IEC 13751:2001]] standard defined atomic vector as: "An implementation-defined character vector containing every member of the ''required character set'' exactly once".<ref>BS ISO/IEC 13751:2001: Information technology. Programming languages, their environments and system software interfaces. Programming language Extended APL. (2001).</ref>


== Value ==
== Value ==
In the following, display of the the character sets are obtained using <syntaxhighlight lang=apl inline>16 16⍴mask\(mask←32≤⎕UCS ⎕AV)/⎕AV</syntaxhighlight> to replace control characters with spaces.
=== APL2 ===
=== APL2 ===
[[APL]] uses two primary values of <source lang=apl inline>⎕AV</source>, an [[wikipedia:ASCII|ASCII]]-based value on [[wikipedia:|personal computer]]s, and an [[wikipedia:EBCDIC|EBCDIC]]-based value on [[wikipedia:mainframe|]s. The ASCII-based value is:
[[APL2]] uses two primary values of <syntaxhighlight lang=apl inline>⎕AV</syntaxhighlight>, an [[wikipedia:ASCII|ASCII]]-based value on [[wikipedia:|personal computer]]s, and an [[wikipedia:EBCDIC|EBCDIC]]-based value on [[wikipedia:mainframe|mainframe]]s. The ASCII-based value is:
<pre>
<pre>
  !"#$%&'()*+,-./0123456789:;<=>?
               
@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_
               
`abcdefghijklmnopqrstuvwxyz{|}~
  !"#$%&'()*+,-./
€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ
0123456789:;<=>?
 ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿
@ABCDEFGHIJKLMNO
ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞß
PQRSTUVWXYZ[\]^_
àáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ
`abcdefghijklmno
pqrstuvwxyz{|}~
ÇüéâäàåçêëèïîìÄÅ
⎕⍞⌹ôöòûù⊤ÖÜø£⊥₧⌶
áíóúñѪº¿⌈¬½∪¡⍕⍎
░▒▓│┤⍟∆∇→╣║╗╝←⌊┐
└┴┬├─┼↑↓╚╔╩╦╠═╬≡
⍸⍷∵⌷⍂⌻⊢⊣⋄┘┌█▄¦Ì▀
⍺ß⊂⊃⍝⍲⍴⍱⌽⊖○∨⍳⍉∊∩
⌿⍀≥≤≠×÷⍙∘⍵⍫⍋⍒¯¨ 
</pre>
</pre>
=== APLX ===
In order to maximise the probability of being able to represent the text when converting from Unicode to internal representation, [[APLX]] accepts as input a number of alternative Unicode values for certain characters. However, these are automatically mapped to normalised character, and any unmappable characters are replaced with a question mark.
<pre>
      ⍐ ⍗ ⍇⍈ ⍱⍲
⍒⍋⌽⍉⊖⍟⌶⍫⍎⍕⍀⌿⍝⍞!⌹
¨)<≤=>]∨^≠÷,+./
0123456789([;×:\
¯⍺⊥∩⌊∊_∇{⍳∘'⎕|⊤○
*?⍴⌈~↓∪⍵⊃↑⊂←⊢→≥-
⋄ABCDEFGHIJKLMNO
PQRSTUVWXYZ∆⊣⍪$}
┌┐└┘─│┼├┤┴┬  Í
"#%&@£`≡≢⍷⍸  ⍤⍥⌷
ÄÅÇÉÑÖÜáàâäãåçéè
êëíìîïñóòô⍥õúùûü
ÀÃÕ  Ææ⍬Øø¿¡ßÿ
abcdefghijklmno
pqrstuvwxyz⍙È€
</pre>
=== Dyalog APL ===
=== Dyalog APL ===
<source lang=apl inline>⎕AV</source> is obsolete in [[Dyalog APL]] since the Unicode Edition was introduced and is only retained for backwards compatibility.<ref>Bernard Legrand. [https://www.dyalog.com/uploads/documents/MasteringDyalogAPL.pdf#page=525 Mastering Dyalog APL (page 525)]. [[Dyalog Ltd]]. November 2009.</ref> It no longer contains all the [[glyph]]s used for [[primitive function]]s and [[primitive operator|operators]]<ref>[[Adám Brudzewsky]] [https://github.com/abrudz/SBCS/blob/master/README.md#usage SBCS] (Single Byte Character Set) Usage</ref>, but can be adjusted by setting the [[Atomic Vector - Unicode]] (<source lang=apl inline>⎕AVU</source>) variable to a list of Unicode code points. The default value is:
<syntaxhighlight lang=apl inline>⎕AV</syntaxhighlight> is obsolete in [[Dyalog APL]] since the Unicode Edition was introduced and is only retained for backwards compatibility.<ref>Bernard Legrand. [https://www.dyalog.com/uploads/documents/MasteringDyalogAPL.pdf#page=525 Mastering Dyalog APL (page 525)]. [[Dyalog Ltd]]. November 2009.</ref> It no longer contains all the [[glyph]]s used for [[primitive function]]s and [[primitive operator|operators]]<ref>[[Adám Brudzewsky]] [https://github.com/abrudz/SBCS/blob/master/README.md#usage SBCS] (Single Byte Character Set) Usage</ref>, but can be adjusted by setting the [[Atomic Vector - Unicode]] (<syntaxhighlight lang=apl inline>⎕AVU</syntaxhighlight>) variable to a list of Unicode code points. The default value is:
<pre>
<pre>
      6 41⍴10↓⎕AV
          ⌶ɫ%'⍺⍵
⌶ɫ%'⍺⍵_abcdefghijklmnopqrstuvwxyz��¯.⍬012
_abcdefghijklmno
3456789�⊢¥$£¢∆ABCDEFGHIJKLMNOPQRSTUVWXYZ�
pqrstuvwxyz  ¯.⍬
�ý·⍙ÁÂÃÇÈÊËÌÍÎÏÐÒÓÔÕÙÚÛÝþãìðòõ{€}⊣⌷¨ÀÄÅÆ
0123456789 ⊢¥$£¢
⍨ÉÑÖØÜßàáâäåæçèéêëíîïñ[/⌿\⍀<≤=≥>≠∨∧-+÷×?∊
∆ABCDEFGHIJKLMNO
⍴~↑↓⍳○*⌈⌊∇∘(⊂⊃∩∪⊥⊤|;,⍱⍲⍒⍋⍉⌽⊖⍟⌹!⍕⍎⍫⍪≡≢óôöø
PQRSTUVWXYZ  ý·
"#�&´┘┐┌└┼─├┤┴┬│@ùúû^ü`∣¶:⍷¿¡⋄←→⍝)]� §⎕⍞⍣
⍙ÁÂÃÇÈÊËÌÍÎÏÐÒÓÔ
ÕÙÚÛÝþãìðòõ{€}⊣⌷
¨ÀÄÅÆ⍨ÉÑÖØÜßàáâä
åæçèéêëíîïñ[/⌿\⍀
<≤=≥>≠∨∧-+÷×?∊⍴~
↑↓⍳○*⌈⌊∇∘(⊂⊃∩∪⊥⊤
|;,⍱⍲⍒⍋⍉⌽⊖⍟⌹!⍕⍎⍫
⍪≡≢óôöø"# &´┘┐┌└
┼─├┤┴┬│@ùúû^ü`∣¶
:⍷¿¡⋄←→⍝)]  §⎕⍞⍣
</pre>
</pre>


=== GNU APL ===
=== GNU APL ===
In [[GNU APL]]:
[[GNU APL]] is fully Unicode-aware, and only includes the atomic vector for completeness:
<pre>
<pre>
      5 45⍴31↓⎕AV
               
  !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJK
               
LMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwx
  !"#$%&'()*+,-./
yz{|}~¥€⇄∧∼≬⋆⋸⌸⌺⌼μ⍁¡⍣⍅⎕⍞⌹⍆⍤⍇⍈⍊⊤λ⍍⍏£⊥⍶⌶⍐⍑χ≢⍖⍗
0123456789:;<=>?
⍘⍚⍛⌈⍜⍢∪⍨⍕⍎⍬⍪∣│┤⍟∆∇→╣║╗╝←⌊┐└┴┬├─┼↑↓╔╚╩╦╠═╬≡⍸⍷∵
@ABCDEFGHIJKLMNO
⌷⍂⌻⊢⊣◊┘┌█▄▌▐▀⍺⍹⊂⊃⍝⍲⍴⍱⌽⊖○∨⍳⍉∈∩⌿⍀≥≤≠×÷⍙∘⍵⍫⍋⍒¯¨
PQRSTUVWXYZ[\]^_
</pre>
`abcdefghijklmno
pqrstuvwxyz{|}~
¥€⇄∧∼≬⋆⋸⌸⌺⌼μ⍁¡⍣⍅
⎕⍞⌹⍆⍤⍇⍈⍊⊤λ⍍⍏£⊥⍶⌶
⍐⍑χ≢⍖⍗⍘⍚⍛⌈⍜⍢∪⍨⍕⍎
⍬⍪∣│┤⍟∆∇→╣║╗╝←⌊┐
└┴┬├─┼↑↓╔╚╩╦╠═╬≡
⍸⍷∵⌷⍂⌻⊢⊣◊┘┌█▄▌▐▀
⍺⍹⊂⊃⍝⍲⍴⍱⌽⊖○∨⍳⍉∈∩
⌿⍀≥≤≠×÷⍙∘⍵⍫⍋⍒¯¨ </pre>


== External links ==
== External links ==
Retrieved from ‘https://aplwiki.com/wiki/Special:MobileDiff/4996...9377’

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