Bind: Difference between revisions

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(I'm guessing g was meant here, though it makes little difference.)
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=== Documentation ===
=== Documentation ===
* [https://help.dyalog.com/18.0/#Language/Primitive%20Operators/Bind.htm Dyalog]
* [https://help.dyalog.com/18.0/#Language/Primitive%20Operators/Bind.htm Dyalog]
* [https://mlochbaum.github.io/BQN/doc/hook.html BQN] (uses [[hook]])




{{APL built-ins}}[[Category:Primitive operators]][[Category:Composition operators]]
{{APL built-ins}}[[Category:Primitive operators]][[Category:Composition operators]]

Revision as of 02:38, 28 May 2022

Bind () is a primitive operator. It shares the glyph Jot () with Beside; in many dialects the two operators share the name Compose. Its derived functions can only be called monadically.

Called with an array left operand A and function right operand g, (Ag) X is equivalent to A g X.

Called with a function left operand f and array right operand B, (fB) X is equivalent to X f B.

Common usage

Bind is used to create a derived function with a single constant argument, particularly in tacit programming:

Try it online!

      Inc+1
      Inc 1 2 3
2 3 4

External links

Lessons

Documentation


APL built-ins [edit]
Primitive functions
Scalar
Monadic ConjugateNegateSignumReciprocalMagnitudeExponentialNatural LogarithmFloorCeilingFactorialNotPi TimesRollTypeImaginarySquare Root
Dyadic AddSubtractTimesDivideResiduePowerLogarithmMinimumMaximumBinomialComparison functionsBoolean functions (And, Or, Nand, Nor) ∙ GCDLCMCircularComplexRoot
Non-Scalar
Structural ShapeReshapeTallyDepthRavelEnlistTableCatenateReverseRotateTransposeRazeMixSplitEncloseNestCut (K)PairLinkPartitioned EnclosePartition
Selection FirstPickTakeDropUniqueIdentitySelectReplicateExpandSet functions (IntersectionUnionWithout) ∙ Bracket indexingIndex
Selector Index generatorGradeIndex OfInterval IndexIndicesDeal
Computational MatchNot MatchMembershipFindNub SieveEncodeDecodeMatrix InverseMatrix DivideFormatExecuteMaterialiseRange
Primitive operators Monadic EachCommuteConstantReplicateExpandReduceWindowed ReduceScanOuter ProductKeyI-BeamSpawnFunction axis
Dyadic BindCompositions (Compose, Reverse Compose, Beside, Withe, Atop, Over) ∙ Inner ProductPowerAtUnderRankDepthVariantStencilCut (J)
Quad names
Arrays Index originMigration levelAtomic vector
Functions Name classCase convertUnicode convert
Operators SearchReplace