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• Function axis
  ...ich adhere to [[leading axis theory]] reject the use of axis specification in favor of the [[Rank operator]] because it is a fully general operator while ...list of axes to specify where the axes of argument elements will be placed in the result.
  6 KB (878 words) - 05:12, 11 November 2022
• RANK ERROR
  ...]] or [[scalar]], so giving it a higher-rank array as [[argument]] results in a RANK ERROR: ...RROR may be caused when argument ranks are incompatible in some other way. In languages with [[major cell search]] such as [[Dyalog APL]] and [[J]], the
  1 KB (190 words) - 23:30, 10 March 2024
• Type
  ...rmation about the type and structure of its argument array's [[element]]s. In normal cases, the result is identical to the argument, with all numbers rep ...ement'') was repurposed for [[Enlist]]. Thus, Dyalog left the Type meaning in place only when [[migration level]] is 0, while setting it to 1 or higher f
  5 KB (491 words) - 14:28, 13 February 2023
• APL.jl
  ...s returns Julia data. Dfns defined using APl.jl can hence be used directly in Julia code like ordinary functions. ...l""</code> string macro parses and evaluates an APL expression. The parser works on the reverse of the APL code, using the help of concatenation rules to re
  3 KB (393 words) - 08:25, 23 September 2022
• Function-operator overloading
  ...lyphs themselves, or to their values and derivations as well: for example, in [[Dyalog APL]] the assignments <syntaxhighlight lang=apl inline>r←/</synt ...nts, but dialects with overloading always choose the first interpretation, in which the overloaded value is treated as an operator.
  6 KB (797 words) - 12:53, 13 February 2024
• Dot
  * In all dialects, it is used as [[wikipedia:decimal separator|decimal separator * In all dialects, it is a [[dyadic operator]] with function [[operand]]s, deriv
  3 KB (322 words) - 22:12, 10 September 2022
• From
  ...ted]] left argument, which varies from one language to another. It appears in [[SAX]] (as <syntaxhighlight lang=apl inline>@</syntaxhighlight>), [[Extend </syntaxhighlight>{{Works in|[[dzaima/APL]], [[Extended Dyalog APL]]}}
  6 KB (853 words) - 15:55, 19 February 2024
• Unique
  ...hich do not [[match]] an earlier distinct cell) in the order they appeared in the array. It works on nested arrays as well:
  9 KB (1,243 words) - 12:57, 23 November 2023
• Drop
  ...and a detailed description of those extensions and their history is given in that article rather than this one. Unlike Take, Drop never uses [[fill elem {{Works in|[[Dyalog APL]], [[ngn/apl]]}}
  4 KB (605 words) - 21:23, 10 September 2022
• Indices
  ...o [[Replicate]], and may be seen as an index-based equivalent to Replicate in the same way that [[Grade]] is an index-based equivalent of sorting. ...st language to include the primitive, it is called Where (<code>&</code>). In [[J]], it is called Indices (<syntaxhighlight lang=j inline>I.</syntaxhighl
  8 KB (1,126 words) - 20:03, 14 April 2024
• GCD
  ...same results on [[Boolean]] arguments and the same [[identity element]] 0, in the same way that [[LCM]] extends [[And]]. </syntaxhighlight>{{Works in|[[Dyalog APL]]}}
  4 KB (497 words) - 21:37, 17 February 2024
• Empty array
  In the APL [[array model]], an '''empty''' array is one with a [[bound]] of ze ...axhighlight>. These arrays have different prototypes, and do not [[match]] in most APLs.
  5 KB (810 words) - 22:29, 10 September 2022
• Frame agreement
  ...if one frame is empty. The latter case corresponds to pairing one argument in its entirety with each of the [[cells]] of the other argument. {{Works in|[[Dyalog APL]]}}
  7 KB (779 words) - 14:23, 26 August 2023
• Defined function (traditional)
  ...ll forms; in particular [[dfn]]s are considered a type of defined function in [[Dyalog APL]] and [[GNU APL]].'' ...ctions]] have appeared, with [[J]] and [[K]] rejecting function definition in favor of [[anonymous function]] description.
  11 KB (1,470 words) - 22:13, 10 September 2022
• Raze
  ...e outer vector's axis with the first axis of each element. Raze is present in [[SHARP APL]], [[A+]], [[J]], and [[BQN]]. {{Works in|[[A+]]}}
  6 KB (812 words) - 23:25, 29 January 2024
• Membership
  ...ment. Membership derives from the traditional mathematical notation <math>\in</math> (''Element of'') and therefore uses that [[glyph]] (lunate epsilon). ...ch as [[J]] (spelled <syntaxhighlight lang=j inline>e.</syntaxhighlight>). In this case, if the right argument is a higher-[[rank]] array, the [[cell|cel
  2 KB (324 words) - 15:33, 11 January 2024
• Main Page
  ...remember]] APL with little effort. There is plenty of material to help you in the process. ...user groups|user groups]] all around the globe, many of these hold regular in-person meet-ups. There are also multiple online [[chat rooms and forums]].
  5 KB (707 words) - 22:15, 10 September 2022
• Roll
  ...cts allow <syntaxhighlight lang=apl inline>n</syntaxhighlight> to be zero, in which case Roll chooses a floating-point number between 0 and 1. Roll share {{Works in|[[Dyalog APL]], [[NARS2000]], [[dzaima/APL]]}}
  3 KB (373 words) - 22:14, 10 September 2022
• Scalar extension
  ...]s, so it's unclear when scalar extension as a unified concept was adopted in [[Iverson notation]]. ...ve been a [[RANK ERROR]] into a valid application. Second, the application works by conceptually extending the scalar to function as though it were an array
  8 KB (947 words) - 03:06, 20 February 2024
• Rotate
  ...ault one. In the [[leading axis model]], specifying an axis is discouraged in favor of using <syntaxhighlight lang=apl inline>⊖</syntaxhighlight> with </syntaxhighlight>{{Works in|[[Dyalog APL]]}}
  5 KB (626 words) - 22:15, 10 September 2022

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