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In usage, <source lang=apl inline>X f∘g Y</source> is equivalent to <source lang=apl inline>X f g Y</source>, and <source lang=apl inline>f∘g Y</source> is equivalent to <source lang=apl inline>f g Y</source>. Thus, beside can be defined as the [[dop]] <source lang=apl inline>{⍺←⊢ ⋄ ⍺ ⍺⍺ ⍵⍵ ⍵}</source>. | In usage, <source lang=apl inline>X f∘g Y</source> is equivalent to <source lang=apl inline>X f g Y</source>, and <source lang=apl inline>f∘g Y</source> is equivalent to <source lang=apl inline>f g Y</source>. Thus, beside can be defined as the [[dop]] <source lang=apl inline>{⍺←⊢ ⋄ ⍺ ⍺⍺ ⍵⍵ ⍵}</source>. | ||
== Examples == | |||
When use [[monadic]]ally, <source lang=apl inline>f∘g</source> behaves the same as [https://en.wikipedia.org/wiki/Function_composition function compositian]. | |||
<source lang=apl> | |||
-∘÷ 2 | |||
¯0.5 | |||
⍝ same as | |||
-(÷2) | |||
¯0.5 | |||
</source> | |||
When use [[dyadic]]ally, <source lang=apl inline>f∘g</source> forms a [[Hook]]. | |||
<source lang=apl> | |||
'oy'≡∘⌽'yo' | |||
1 | |||
⍝ same as | |||
'oy'≡⌽'yo' | |||
1 | |||
</source> | |||
== External links == | == External links == |