Björn Helgason wrote:
>
> Your brain is in two parts….left and right. The left part has nothing
> right
> in it and the right has nothing left in it.
>
>
You mean some sort of a mad poet?
Yet another case: The left part has nothing left in it and the right has
nothing right in it.
>
>
> Raul Miller-4 wrote:
> >
> > On 6/28/08, Jack Andrews <[EMAIL PROTECTED]> wrote:
> >> how would you express the 'less interesting' case in J?
> >
> > ({.-+/@}.)1 2 3 4 5
> >
> >
>
> Although this is correct in the case of -, I think the general solution to
> this
> problem is -~/|.1 2 3 4 5
>
> -/1 2 3 4 5
> 3
> -~/|.1 2 3 4 5
> _13
>
> in the following sense:
>
> f/1 2 3 4 5 NB. evaluates as:
>
> 1 f 2 f 3 f 4 f 5
> (1 f(2 f(3 f(4 f 5)))) NB. default right to left order
>
>
> f~/|.1 2 3 4 5 evaluates as:
>
> f~/5 4 3 2 1 NB. default right to left order
> 5 f~ 4 f~ 3 f~ 2 f~ 1
> (5 f~(4 f~(3 f~(2 f~ 1)))) NB. default right to left order
> (4 f~(3 f~(2 f~ 1)))f 5
> ((3 f~(2 f~ 1))f 4)f 5
> (((2 f~ 1)f 3)f 4)f 5
> (((1 f 2)f 3)f 4)f 5 NB. left to right order
>
> --
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>
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--
Björn Helgason, Verkfræðingur
Fugl&Fiskur ehf,
Fornustekkum II, 781 Hornafirði
Po Box 127,801 Selfoss ,
t-póst: [EMAIL PROTECTED]
gsm: +3546985532
Landslags og skrúðgarðagerð, gröfuþjónusta
http://groups.google.com/group/J-Programming
Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans
góður kennari getur stigið á tær án þess að glansinn fari af skónum
/|_ .-----------------------------------.
,' .\ / | Með léttri lund verður |
,--' _,' | Dagurinn í dag |
/ / | Enn betri en gærdagurinn |
( -. | `-----------------------------------'
| ) | (\_ _/)
(`-. '--.) (='.'=)
`. )----' (")_(")
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