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Pair up the elements on the left with each element of each element on the right. | Pair up the elements on the left with each element of each element on the right. | ||
<syntaxhighlight lang=apl> | <syntaxhighlight lang=apl> | ||
'xy', | 'xy',⍥¯1⍥¯1⊢('ab' 'cd')('AB' 'CD') ⍝ equivalent to (⊂'xy'),¨¨('ab' 'cd')('AB' 'CD') | ||
┌─────────┬─────────┐ | ┌─────────┬─────────┐ | ||
│┌───┬───┐│┌───┬───┐│ | │┌───┬───┐│┌───┬───┐│ |