Atomic vector

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⎕AV

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.

Value

APL2

APL uses two primary values of ⎕AV, an ASCII-based value on personal computers, and an EBCDIC-based value on mainframes. The ASCII-based value is: 

      7 32⍴32↓⎕AV
 !"#$%&'()*+,-./0123456789:;<=>?
@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_
`abcdefghijklmnopqrstuvwxyz{|}~?
ÇüéâäàåçêëèïîìÄÅ⎕⍞⌹ôöòûù⊤ÖÜø£⊥₧⌶
áíóúñѪº¿⌈¬½∪¡⍕⍎░▒▓│┤⍟∆∇→╣║╗╝←⌊┐
└┴┬├─┼↑↓╚╔╩╦╠═╬≡⍸⍷∵⌷⍂⌻⊢⊣⋄┘┌█▄¦Ì▀
⍺ß⊂⊃⍝⍲⍴⍱⌽⊖○∨⍳⍉∊∩⌿⍀≥≤≠×÷⍙∘⍵⍫⍋⍒¯¨ 

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.

The atomic vector can be displayed with 16 16⍴mask\(mask←32≤⎕UCS ⎕AV)/⎕AV: 

      ⍐ ⍗ ⍇⍈ ⍱⍲
⍒⍋⌽⍉⊖⍟⌶⍫⍎⍕⍀⌿⍝⍞!⌹
 ¨)<≤=>]∨^≠÷,+./
0123456789([;×:\
¯⍺⊥∩⌊∊_∇{⍳∘'⎕|⊤○
*?⍴⌈~↓∪⍵⊃↑⊂←⊢→≥-
⋄ABCDEFGHIJKLMNO
PQRSTUVWXYZ∆⊣⍪$}

┌┐└┘─│┼├┤┴┬  Í
"#%&@£`≡≢⍷⍸  ⍤⍥⌷
ÄÅÇÉÑÖÜáàâäãåçéè
êëíìîïñóòô⍥õúùûü
ÀÃÕ  Ææ⍬Øø¿¡ßÿ
 abcdefghijklmno
pqrstuvwxyz⍙È€

Dyalog APL

⎕AV is obsolete in Dyalog APL since the Unicode Edition was introduced and is only retained for backwards compatibility.[1] It no longer contains all the glyphs used for primitive functions and operators[2], but can be adjusted by setting the Atomic Vector - Unicode (⎕AVU) variable to a list of Unicode code points. The default value is: 

      6 41⍴10↓⎕AV
⌶ɫ%'⍺⍵_abcdefghijklmnopqrstuvwxyz��¯.⍬012
3456789�⊢¥$£¢∆ABCDEFGHIJKLMNOPQRSTUVWXYZ�
�ý·?⍙ÁÂÃÇÈÊËÌÍÎÏÐÒÓÔÕÙÚÛÝþãìðòõ{€}⊣⌷¨ÀÄÅÆ
⍨ÉÑÖØÜßàáâäåæçèéêëíîïñ[/⌿\⍀<≤=≥>≠∨∧-+÷×?∊
⍴~↑↓⍳○*⌈⌊∇∘(⊂⊃∩∪⊥⊤|;,⍱⍲⍒⍋⍉⌽⊖⍟⌹!⍕⍎⍫⍪≡≢óôöø
"#�&´┘┐┌└┼─├┤┴┬│@ùúû^ü`∣¶:⍷¿¡⋄←→⍝)]� §⎕⍞⍣

GNU APL

In GNU APL: 

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

External links

Documentation

References

  1. ↑ Bernard Legrand. Mastering Dyalog APL (page 525). Dyalog Ltd. November 2009.
  2. ↑ Adám Brudzewsky SBCS (Single Byte Character Set) Usage
APL built-ins [edit]
Primitives (Timeline) Functions
Scalar
Monadic Conjugate ∙ Negate ∙ Signum ∙ Reciprocal ∙ Magnitude ∙ Exponential ∙ Natural Logarithm ∙ Floor ∙ Ceiling ∙ Factorial ∙ Not ∙ Pi Times ∙ Roll ∙ Type ∙ Imaginary ∙ Square Root ∙ Round
Dyadic Add ∙ Subtract ∙ Times ∙ Divide ∙ Residue ∙ Power ∙ Logarithm ∙ Minimum ∙ Maximum ∙ Binomial ∙ Comparison functions ∙ Boolean functions (And, Or, Nand, Nor) ∙ GCD ∙ LCM ∙ Circular ∙ Complex ∙ Root
Non-Scalar
Structural Shape ∙ Reshape ∙ Tally ∙ Depth ∙ Ravel ∙ Enlist ∙ Table ∙ Catenate ∙ Reverse ∙ Rotate ∙ Transpose ∙ Raze ∙ Mix ∙ Split ∙ Enclose ∙ Nest ∙ Cut (K) ∙ Pair ∙ Link ∙ Partitioned Enclose ∙ Partition
Selection First ∙ Pick ∙ Take ∙ Drop ∙ Unique ∙ Identity ∙ Stop ∙ Select ∙ Replicate ∙ Expand ∙ Set functions (Intersection ∙ Union ∙ Without) ∙ Bracket indexing ∙ Index ∙ Cartesian Product ∙ Sort
Selector Index generator ∙ Grade ∙ Index Of ∙ Interval Index ∙ Indices ∙ Deal ∙ Prefix and suffix vectors
Computational Match ∙ Not Match ∙ Membership ∙ Find ∙ Nub Sieve ∙ Encode ∙ Decode ∙ Matrix Inverse ∙ Matrix Divide ∙ Format ∙ Execute ∙ Materialise ∙ Range
Operators Monadic Each ∙ Commute ∙ Constant ∙ Replicate ∙ Expand ∙ Reduce ∙ Windowed Reduce ∙ Scan ∙ Outer Product ∙ Key ∙ I-Beam ∙ Spawn ∙ Function axis ∙ Identity (Null, Ident)
Dyadic Bind ∙ Compositions (Compose, Reverse Compose, Beside, Withe, Atop, Over) ∙ Inner Product ∙ Determinant ∙ Power ∙ At ∙ Under ∙ Rank ∙ Depth ∙ Variant ∙ Stencil ∙ Cut ∙ Direct definition (operator) ∙ Identity (Lev, Dex)
Quad names Index origin ∙ Comparison tolerance ∙ Migration level ∙ Atomic vector
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