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:''This page is about the dyadic primitive function. "Range" refers to [[Unique]] in K and [[Index Generator]] in BQN.'' | :''This page is about the dyadic primitive function. "Range" refers to [[Unique]] in K and [[Index Generator]] in BQN.'' | ||
{{Built-ins|Range|…|..}} or '''Sequence''' is a [[dyadic]] [[primitive function]] which creates a [[vector]] of consecutive integers based on the start and end values given by its [[argument|arguments]]. It serves as an [[index origin]]-agnostic alternative to [[Index Generator]] for creating a range of numbers. Range is currently implemented in [[NARS2000]] (using the digraph <syntaxhighlight lang=apl inline>..</ | {{Built-ins|Range|…|..}} or '''Sequence''' is a [[dyadic]] [[primitive function]] which creates a [[vector]] of consecutive integers based on the start and end values given by its [[argument|arguments]]. It serves as an [[index origin]]-agnostic alternative to [[Index Generator]] for creating a range of numbers. Range is currently implemented in [[NARS2000]] (using the digraph <syntaxhighlight lang=apl inline>..</syntaxhighlight>), [[Extended Dyalog APL]], and [[dzaima/APL]]. | ||
== Basic usage == | == Basic usage == | ||
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5…¯5 | 5…¯5 | ||
5 4 3 2 1 0 ¯1 ¯2 ¯3 ¯4 ¯5 | 5 4 3 2 1 0 ¯1 ¯2 ¯3 ¯4 ¯5 | ||
</ | </syntaxhighlight>{{Works in|[[NARS2000]], [[Extended Dyalog APL]], [[dzaima/APL]]}} | ||
It should be noted that, since the exact definition of Range has never been standardised, a different implementation might as well choose to return <syntaxhighlight lang=apl inline>⍬</ | It should be noted that, since the exact definition of Range has never been standardised, a different implementation might as well choose to return <syntaxhighlight lang=apl inline>⍬</syntaxhighlight> or even throw a [[DOMAIN ERROR]] for <syntaxhighlight lang=apl inline>X…Y</syntaxhighlight> when <syntaxhighlight lang=apl inline>X>Y</syntaxhighlight>. | ||
== Extensions == | == Extensions == | ||
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│2 7│2 5│2 3│ | │2 7│2 5│2 3│ | ||
└───┴───┴───┘ | └───┴───┴───┘ | ||
</ | </syntaxhighlight>{{Works in|[[NARS2000]]}} | ||
In [[Extended Dyalog APL]], the extension is focused on making it easier to produce integer or character vector constants: | In [[Extended Dyalog APL]], the extension is focused on making it easier to produce integer or character vector constants: | ||
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'a'…'zA'…'Z' | 'a'…'zA'…'Z' | ||
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ | abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ | ||
</ | </syntaxhighlight>{{Works in|[[Extended Dyalog APL]]}} | ||
== External links == | == External links == |