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== Influence == | == Influence == | ||
Many of the extensions have been adopted into [[dzaima/APL]], while Dyalog APL added [[Constant]] (< | Many of the extensions have been adopted into [[dzaima/APL]], while Dyalog APL added [[Constant]] (<syntaxhighlight lang=apl inline>⍨</syntaxhighlight>) and introduced non-experimental [[Case Convert|case conversion]] as a <syntaxhighlight lang=apl inline>⎕C</syntaxhighlight> [[function]] rather than the proposed [[operator]]. Dyalog is also considering adding [[Reverse Compose]], [[From]], and [[Depth (operator)|Depth]]. | ||
== Features == | == Features == | ||
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| Name || Glyph || Type* || Extension | | Name || Glyph || Type* || Extension | ||
|- | |- | ||
| Back Slash || < | | Back Slash || <syntaxhighlight lang=apl inline>\</syntaxhighlight> || 🔶 || <syntaxhighlight lang=apl inline>∘.f</syntaxhighlight>when dyadic, allows short and/or multiple left args | ||
|- | |- | ||
| Back Slash Bar || < | | Back Slash Bar || <syntaxhighlight lang=apl inline>⍀</syntaxhighlight> || 🔶 || <syntaxhighlight lang=apl inline>⊢∘f</syntaxhighlight>when dyadic, allows short and/or multiple left args | ||
|- | |- | ||
| Bullet || < | | Bullet || <syntaxhighlight lang=apl inline>∙</syntaxhighlight> || 🔺 || Inner product and Alternant | ||
|- | |- | ||
| Circle Diaeresis || < | | Circle Diaeresis || <syntaxhighlight lang=apl inline>⍥</syntaxhighlight> || 🔺 || Over and Depth | ||
|- | |- | ||
| Circle Jot || < | | Circle Jot || <syntaxhighlight lang=apl inline>⌾</syntaxhighlight> || 🔺 || Complex/Imaginary | ||
|- | |- | ||
| Del Diaeresis || < | | Del Diaeresis || <syntaxhighlight lang=apl inline>⍢</syntaxhighlight> || 🔺 || Under (a.k.a. Dual) | ||
|- | |- | ||
| Del Tilde || < | | Del Tilde || <syntaxhighlight lang=apl inline>⍫</syntaxhighlight> || 🔺 || Obverse;<syntaxhighlight lang=apl inline>⍺⍺</syntaxhighlight>but with inverse<syntaxhighlight lang=apl inline>⍵⍵</syntaxhighlight> | ||
|- | |- | ||
| Diaeresis || < | | Diaeresis || <syntaxhighlight lang=apl inline>¨</syntaxhighlight> || 🔵 || allows constant operand | ||
|- | |- | ||
| Divide || < | | Divide || <syntaxhighlight lang=apl inline>÷</syntaxhighlight> || 🔵 || monadic converts letters to title case when possible | ||
|- | |- | ||
| Dollar Sign || < | | Dollar Sign || <syntaxhighlight lang=apl inline>$</syntaxhighlight> || 🔺 || string enhancement <code>${1}</code>:<syntaxhighlight lang=apl inline>1⊃⍺</syntaxhighlight>, <code>${expr}</code>:<syntaxhighlight lang=apl inline>⍎expr</syntaxhighlight>,<syntaxhighlight lang=apl inline>\n</syntaxhighlight>:JSON | ||
|- | |- | ||
| Down Arrow || < | | Down Arrow || <syntaxhighlight lang=apl inline>↓</syntaxhighlight> || 🔵 || allows long<syntaxhighlight lang=apl inline>⍺</syntaxhighlight> | ||
|- | |- | ||
| Down Shoe || < | | Down Shoe || <syntaxhighlight lang=apl inline>∪</syntaxhighlight> || 🔵 || allows rank>1 | ||
|- | |- | ||
| Downstile || < | | Downstile || <syntaxhighlight lang=apl inline>⌊</syntaxhighlight> || 🔵 || monadic lowercases letters | ||
|- | |- | ||
| Down Tack || < | | Down Tack || <syntaxhighlight lang=apl inline>⊤</syntaxhighlight> || 🔶 || 2s as default left argument | ||
|- | |- | ||
| Ellipsis || < | | Ellipsis || <syntaxhighlight lang=apl inline>…</syntaxhighlight> || 🔺 || fill sequence gaps ([[dfns workspace]]'s<syntaxhighlight lang=apl inline>to⍤1</syntaxhighlight> | ||
|- | |- | ||
| Epsilon Underbar || < | | Epsilon Underbar || <syntaxhighlight lang=apl inline>⍷</syntaxhighlight> || 🔶 || monadic is Type<syntaxhighlight lang=apl inline>∊</syntaxhighlight>with<syntaxhighlight lang=apl inline>⎕ML←0</syntaxhighlight> | ||
|- | |- | ||
| Equals || < | | Equals || <syntaxhighlight lang=apl inline>=</syntaxhighlight> || 🔶 || with [[TAO]]; monad: is-type | ||
|- | |- | ||
| Greater Than || < | | Greater Than || <syntaxhighlight lang=apl inline>></syntaxhighlight> || 🔶 || with TAO; monad: is-strictly-negative/is-visible | ||
|- | |- | ||
| Greater Than Or Equal To || < | | Greater Than Or Equal To || <syntaxhighlight lang=apl inline>≥</syntaxhighlight> || 🔶 || with TAO; monad: is non-positive/is-not-control-character | ||
|- | |- | ||
| house || < | | house || <syntaxhighlight lang=apl inline>⌂</syntaxhighlight> || 🔺 || prefix for contents of [[dfns workspace]] | ||
|- | |- | ||
| infinity || < | | infinity || <syntaxhighlight lang=apl inline>∞</syntaxhighlight> || 🔺 || largest integer (for use with<syntaxhighlight lang=apl inline>⍤</syntaxhighlight>and<syntaxhighlight lang=apl inline>⍣</syntaxhighlight>) | ||
|- | |- | ||
| Iota || < | | Iota || <syntaxhighlight lang=apl inline>⍳</syntaxhighlight> || 🔵 || Unicode version of [[dfns workspace]]'s <syntaxhighlight lang=apl inline>iotag</syntaxhighlight> | ||
|- | |- | ||
| Iota Underbar || < | | Iota Underbar || <syntaxhighlight lang=apl inline>⍸</syntaxhighlight> || 🔵 || allows duplicates/non-Booleans | ||
|- | |- | ||
| Iota Underbar Inverse || < | | Iota Underbar Inverse || <syntaxhighlight lang=apl inline>⍸⍣¯1</syntaxhighlight> || 🔵 || given<syntaxhighlight lang=apl inline>r</syntaxhighlight>, finds<syntaxhighlight lang=apl inline>n</syntaxhighlight>so that<syntaxhighlight lang=apl inline>r≡⍸n</syntaxhighlight> | ||
|- | |- | ||
| Jot Diaeresis || < | | Jot Diaeresis || <syntaxhighlight lang=apl inline>⍤</syntaxhighlight> || 🔵 || allows constant left operand, Atop with function right operand | ||
|- | |- | ||
| Jot Underbar || < | | Jot Underbar || <syntaxhighlight lang=apl inline>⍛</syntaxhighlight> || 🔺 || reverse composition<syntaxhighlight lang=apl inline>X f⍛g Y</syntaxhighlight>is<syntaxhighlight lang=apl inline>(f X) g Y</syntaxhighlight> | ||
|- | |- | ||
| Left Shoe || < | | Left Shoe || <syntaxhighlight lang=apl inline>⊂</syntaxhighlight> || 🔵 || allows partitioning along multiple trailing axes, with short <syntaxhighlight lang=apl inline>⍺</syntaxhighlight>s, and inserting/appending empty partitions | ||
|- | |- | ||
| Left Shoe Stile || < | | Left Shoe Stile || <syntaxhighlight lang=apl inline>⍧</syntaxhighlight> || 🔺 || monad: nub-sieve; dyad: count-in | ||
|- | |- | ||
| Left Shoe With Axis || < | | Left Shoe With Axis || <syntaxhighlight lang=apl inline>⊂[k]</syntaxhighlight> || 🔵 || as<syntaxhighlight lang=apl inline>⊂</syntaxhighlight>, but called with left operand | ||
|- | |- | ||
| Less Than || < | | Less Than || <syntaxhighlight lang=apl inline><</syntaxhighlight> || 🔶 || with TAO; monad: is-strictly-positive/is-control-character | ||
|- | |- | ||
| Less Than Or Equal To || < | | Less Than Or Equal To || <syntaxhighlight lang=apl inline>≤</syntaxhighlight> || 🔶 || with TAO ; monad: is-non-negative/is-invisible | ||
|- | |- | ||
| Minus || < | | Minus || <syntaxhighlight lang=apl inline>-</syntaxhighlight> || 🔵 || monadic flips letter case | ||
|- | |- | ||
| macron || < | | macron || <syntaxhighlight lang=apl inline>¯</syntaxhighlight> || 🔵 || as prefix to name or primitive means its inverse | ||
|- | |- | ||
| negative Infinity || < | | negative Infinity || <syntaxhighlight lang=apl inline>¯∞</syntaxhighlight> || 🔺 || smallest integer (for use with<syntaxhighlight lang=apl inline>⍣</syntaxhighlight>) | ||
|- | |- | ||
| Nand || < | | Nand || <syntaxhighlight lang=apl inline>⍲</syntaxhighlight> || 🔶 || monad: not all equal to type | ||
|- | |- | ||
| Nor || < | | Nor || <syntaxhighlight lang=apl inline>⍱</syntaxhighlight> || 🔶 || monad: not any equal to type | ||
|- | |- | ||
| Not Equal To || < | | Not Equal To || <syntaxhighlight lang=apl inline>≠</syntaxhighlight> || 🔶 || with TAO; monad: is-non-type | ||
|- | |- | ||
| Percent || < | | Percent || <syntaxhighlight lang=apl inline>%</syntaxhighlight> || 🔺 || <syntaxhighlight lang=apl inline>f%</syntaxhighlight>and<syntaxhighlight lang=apl inline>A%</syntaxhighlight>: probability-logical function (mapping arrays) | ||
|- | |- | ||
| Quad Diamond || < | | Quad Diamond || <syntaxhighlight lang=apl inline>⌺</syntaxhighlight> || 🔶 || auto-extended<syntaxhighlight lang=apl inline>⍵⍵</syntaxhighlight>, allows small<syntaxhighlight lang=apl inline>⍵</syntaxhighlight>, optional edge spec(s) (0:Zero; 1:Repl; 2:Rev; 3:Mirror; 4:Wrap; -:Twist) with masks as operand's<syntaxhighlight lang=apl inline>⍺</syntaxhighlight> | ||
|- | |- | ||
| Question Mark || < | | Question Mark || <syntaxhighlight lang=apl inline>?</syntaxhighlight> || 🔵 || <syntaxhighlight lang=apl inline>⍺?¯⍵</syntaxhighlight>as norm dist stddev <syntaxhighlight lang=apl inline>⍵</syntaxhighlight>and optional mean<syntaxhighlight lang=apl inline>⍺←0</syntaxhighlight> | ||
|- | |- | ||
| Rho || < | | Rho || <syntaxhighlight lang=apl inline>⍴</syntaxhighlight> || 🔵 || allows omitting one dimension length with<syntaxhighlight lang=apl inline>¯1</syntaxhighlight> | ||
|- | |- | ||
| Right Shoe Underbar || < | | Right Shoe Underbar || <syntaxhighlight lang=apl inline>⊇</syntaxhighlight> || 🔺 || monadic discloses if scalar, dyadic indexes sanely | ||
|- | |- | ||
| Right Shoe Underbar With Axis || < | | Right Shoe Underbar With Axis || <syntaxhighlight lang=apl inline>⊇[k]</syntaxhighlight> || 🔺 || as above, but called with left operand | ||
|- | |- | ||
| Root || < | | Root || <syntaxhighlight lang=apl inline>√</syntaxhighlight> || 🔺 || (Square) Root | ||
|- | |- | ||
| Semicolon Underbar || < | | Semicolon Underbar || <syntaxhighlight lang=apl inline>⍮</syntaxhighlight> || 🔺 || (Half) Pair; use<syntaxhighlight lang=apl inline>↑⍤⍮</syntaxhighlight>to add axis | ||
|- | |- | ||
| Slash || < | | Slash || <syntaxhighlight lang=apl inline>/</syntaxhighlight> || 🔵 || allows short and/or multiple left args | ||
|- | |- | ||
| Slash Bar || < | | Slash Bar || <syntaxhighlight lang=apl inline>⌿</syntaxhighlight> || 🔵 || allows short and/or multiple left args | ||
|- | |- | ||
| Star Diaeresis || < | | Star Diaeresis || <syntaxhighlight lang=apl inline>⍣</syntaxhighlight> || 🔵 || allows non-scalar right operand incl.<syntaxhighlight lang=apl inline>∞</syntaxhighlight>and<syntaxhighlight lang=apl inline>¯∞</syntaxhighlight>and array left operand | ||
|- | |- | ||
| Stile || < | | Stile || <syntaxhighlight lang=apl inline>|</syntaxhighlight> || 🔵 || monadic normalises letters to lowercase (upper then lower) | ||
|- | |- | ||
| Stile Tilde || < | | Stile Tilde || <syntaxhighlight lang=apl inline>⍭</syntaxhighlight> || 🔺 || monadic is factors; dyadic depends on<syntaxhighlight lang=apl inline>⍺</syntaxhighlight>: 0=non-prime?, 1=prime?, ¯1=primes less than<syntaxhighlight lang=apl inline>⍵</syntaxhighlight>, ¯2=<syntaxhighlight lang=apl inline>⍵</syntaxhighlight>th prime, 4=next prime, ¯4=prev prime | ||
|- | |- | ||
| Tilde || < | | Tilde || <syntaxhighlight lang=apl inline>~</syntaxhighlight> || 🔵 || monadic allows probabilities, dyadic allows rank>1 | ||
|- | |- | ||
| Tilde Diaeresis || < | | Tilde Diaeresis || <syntaxhighlight lang=apl inline>⍨</syntaxhighlight> || 🔵 || allows constant operand | ||
|- | |- | ||
| Times || < | | Times || <syntaxhighlight lang=apl inline>×</syntaxhighlight> || 🔵 || set/query letter case (lower:<syntaxhighlight lang=apl inline>¯1</syntaxhighlight>, title:<syntaxhighlight lang=apl inline>0</syntaxhighlight>, upper:<syntaxhighlight lang=apl inline>1</syntaxhighlight>) | ||
|- | |- | ||
| Up Arrow || < | | Up Arrow || <syntaxhighlight lang=apl inline>↑</syntaxhighlight> || 🔵 || allows long<syntaxhighlight lang=apl inline>⍺</syntaxhighlight> | ||
|- | |- | ||
| Up Shoe || < | | Up Shoe || <syntaxhighlight lang=apl inline>∩</syntaxhighlight> || 🔶 || monadic is self-classify; dyadic allows rank>1 | ||
|- | |- | ||
| Upstile || < | | Upstile || <syntaxhighlight lang=apl inline>⌈</syntaxhighlight> || 🔵 || monadic uppercases letters | ||
|- | |- | ||
| Up Tack || < | | Up Tack || <syntaxhighlight lang=apl inline>⊥</syntaxhighlight> || 🔶 || 2 as default left argument | ||
|- | |- | ||
| Vel || < | | Vel || <syntaxhighlight lang=apl inline>∨</syntaxhighlight> || 🔶 || monadic is Descending Sort | ||
|- | |- | ||
| Wedge || < | | Wedge || <syntaxhighlight lang=apl inline>∧</syntaxhighlight> || 🔶 || monadic is Ascending Sort | ||
|- | |- | ||
| Case Convert || < | | Case Convert || <syntaxhighlight lang=apl inline>⎕C</syntaxhighlight> || 🔺 || <syntaxhighlight lang=apl inline>fn ⎕C</syntaxhighlight>applies case-insensitively,<syntaxhighlight lang=apl inline>array ⎕C</syntaxhighlight>case-folds | ||
|- | |- | ||
| Error Message || < | | Error Message || <syntaxhighlight lang=apl inline>⎕EM</syntaxhighlight> || 🔺 || Self-inverse<syntaxhighlight lang=apl inline>⎕EM</syntaxhighlight> | ||
|- | |- | ||
| Namespace || < | | Namespace || <syntaxhighlight lang=apl inline>⎕NS</syntaxhighlight> || 🔵 || allows<syntaxhighlight lang=apl inline>⎕NS names values</syntaxhighlight>(tries to resolve<syntaxhighlight lang=apl inline>⎕OR</syntaxhighlight>s) | ||
|- | |- | ||
| Namespace inverse || < | | Namespace inverse || <syntaxhighlight lang=apl inline>⎕NS⍣¯1</syntaxhighlight> || 🔺 || allows<syntaxhighlight lang=apl inline>(names values)←⎕NS⍣¯1⊢ns</syntaxhighlight>(returns<syntaxhighlight lang=apl inline>⎕OR</syntaxhighlight>s for ns/fns) | ||
|- | |- | ||
| Unicode Convert || < | | Unicode Convert || <syntaxhighlight lang=apl inline>⎕UCS</syntaxhighlight> || 🔵 || scalar when monadic | ||
|} | |} | ||
<nowiki>*</nowiki> 🔺 means new feature 🔶 means added valence 🔵 means expanded domain | <nowiki>*</nowiki> 🔺 means new feature 🔶 means added valence 🔵 means expanded domain | ||
{{APL dialects}}[[Category:APL dialects]][[Category:Nested array languages]][[Category:Leading axis languages]][[Category:Languages with tacit programming]] | {{APL dialects}}[[Category:APL dialects]][[Category:Nested array languages]][[Category:Leading axis languages]][[Category:Languages with tacit programming]] |