Take: Difference between revisions
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Miraheze>Adám Brudzewsky No edit summary |
Miraheze>Adám Brudzewsky (class= → lang=) |
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The following [[dfn]] models Take as defined by [[Dyalog APL]] but with no axis specification or error checking. It is implemented by construction a [[nested array]] of indices and using these to select from the right argument, with prototypes used for out-of-range indices. It explicitly includes [[scalar rank extension]] for the right argument and the SHARP APL extension; if these extensions are not wanted those lines can be removed. [[Scalar rank extension]] of the left argument is inherited from [[Iota]] and [[scalar function]] extension. | The following [[dfn]] models Take as defined by [[Dyalog APL]] but with no axis specification or error checking. It is implemented by construction a [[nested array]] of indices and using these to select from the right argument, with prototypes used for out-of-range indices. It explicitly includes [[scalar rank extension]] for the right argument and the SHARP APL extension; if these extensions are not wanted those lines can be removed. [[Scalar rank extension]] of the left argument is inherited from [[Iota]] and [[scalar function]] extension. | ||
<source | <source lang=apl> | ||
Take ← { | Take ← { | ||
⎕IO←0 ⍝ For index comparisons | ⎕IO←0 ⍝ For index comparisons | ||