On Sun, 07 Jun 2009, david alis wrote:
> *>Sun Jun 7 01:12:43 HKT 2009 you wrote:
> *
>
> > I'd still really like to see an essay explaining dyadic left and right
> > (and all of their uses) in verbose detail! (I think this is a really
>
> > important issue for beginners to the language, since so much seems to
> > depend upon it in J programming.)
>
>
> Your postings recall my own difficulties when learning J.
> Maybe seeing the explicit form of the two primitives will help:
> left=: 3 : 0 NB. [
> y
> :
> x
> )
> right=: 3 : 0 NB. ]
> y
> :
> y
> )
>
> These two verbs represent a notion that is fundamental to tacit programming.
But this is where Harvey misunderstood, he wanted to know what special
magic from these 2 verbs in the context of tacit form. What we told
him was that: in fact nothing special albeit they occur more
frequently than other verbs.
--
regards,
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唐詩278 顧況 宮詞
玉樓天半起笙歌 風送宮嬪笑語和 月殿影開聞夜漏 水晶簾捲近秋河
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