They are for direct function (operator?) definitions. Try:
hook←{⍵⍶⍹⍵}
+hook÷2
2.5
> On May 17, 2016, at 8:24 PM, Christian Robert <christian.rob...@polymtl.ca>
> wrote:
>
> hi,
>
> in the result of "]help" I can see:
>
>
> λ { ... } result
> ⍺ { ... } left value argument
> ⍵ { ... } right value argument
> χ { ... } axis argument
> ⍶ { ... } left function argument
> ⍹ { ... } right function argument
>
>
> can someone explain to me the usage of ⍶ and ⍹
> with some examples ?
>
> I understant the first four, but not the last two.
>
> many thanks,
>
> Xtian.
>
