Re: [Bug-apl] A question.

[Christian Robert]

Sorry, no explanations given.

      hook←{⍵⍶⍹⍵}
      +hook÷2
2.5
      hook←{⍵⍶⍹⍵⊣⎕←⍵⊣⎕←⍶⊣⎕←⍹⊣⎕←⍵}
      +hook÷2
2
DOMAIN ERROR
hook[1]  λ←⍵ ⍶ ⍹ ⍵⊣⎕←⍵⊣⎕←⍶⊣⎕←⍹⊣⎕←⍵
                             ^^
please explain the principle to a newbie.

I really want a working examples.


Xtian.


On 2016-05-17 22:30, Xiao-Yong Jin wrote:
> They are for direct function (operator?) definitions.  Try:
>
>       hook←{⍵⍶⍹⍵}
>       +hook÷2
> 2.5
>
> > On May 17, 2016, at 8:24 PM, Christian Robert <address@hidden> 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.