Yes, thanks. It seems more clear. I wasn't aware you could index tines of a
fork.e.g.
k =: ((+/),%,#)
(1{k) 5
gives 0.2
That was the main cause of confusion. Thanks.
> From: [email protected]
> Date: Wed, 15 Apr 2015 02:55:14 -0400
> To: [email protected]
> Subject: Re: [Jprogramming] Verb to string and Verb array
>
> k is a single verb which produces 3 values for each element of its argument.
>
> It is also a fork, and each tine of the fork has a leaf which is a
> bond (n&v). So if you give it a left argument, that becomes a repeat
> count for those operations.
>
> There are some other properties which you can observe by inspection
> (each tine of the fork is composed of rank zero verbs, for example).
>
> Does that help?
>
> Thanks,
>
> --
> Raul
>
> On Wed, Apr 15, 2015 at 2:34 AM, Jon Hough <[email protected]> wrote:
> > I am slightly confused with how the tie (gerund) and or the linear
> > representation are related to this:
> >
> > k =: (^@:(3&*)) d. 1 2 3
> >
> >
> > results in :
> >
> >
> >
> >
> > ((3"0 * ^@(3&*)) , (9"0 * ^@(3&*)) , 27"0 * ^@(3&*))"0
> >
> >
> > Which seems to be three verbs; If I do :
> > k 3
> >
> >
> > I get :
> >
> >
> > 24309.3 72927.8 218783
> > And I can also do:
> >
> >
> > (0{k) 3
> >
> >
> > 24309.3
> >
> >
> >
> >
> > So whatever k is, it returns three nouns for one input noun, and it is
> > indexable so is an array of some sort. But what exactly (in terms of
> > parts-of-speech) is k?
> >
> >
> >
> >> Date: Tue, 14 Apr 2015 18:59:52 +0200
> >> From: [email protected]
> >> To: [email protected]
> >> Subject: Re: [Jprogramming] Verb to string and Verb array
> >>
> >> Exactly. Actually, any time you want something to work as if it were
> >> assigned to a name, you'd need brackets.
> >> Eg: *: +&. won't work, while *: (+&.) will. But this might be out of your
> >> scope, since +&. is an adverb, not a verb.
> >>
> >> 2015-04-14 17:35 GMT+02:00 Jon Hough <[email protected]>:
> >>
> >> > Thanks,
> >> > Just to be clear, '(',')',~ is just to bracketify the verb so its fork
> >> > (in this case) works, right?
> >> >
> >> > --- Original Message ---
> >> >
> >> > From: "Jan-Pieter Jacobs" <[email protected]>
> >> > Sent: April 14, 2015 5:26 PM
> >> > To: [email protected]
> >> > Subject: Re: [Jprogramming] Verb to string and Verb array
> >> >
> >> > Hey John,
> >> >
> >> > I think 1. you can do using 5!:5:
> >> >
> >> > mean =: +/%#
> >> > mean i.5
> >> > 2
> >> > 5!:5 <'mean'
> >> > +/ % #
> >> > datatype 5!:5 <'mean'
> >> > literal
> >> > ". (('(',')',~5!:5) <'mean'),'0 1 2 3 4'
> >> > 2
> >> > stringify =: '(',')',~5!:5
> >> > (stringify <'mean') , '0 1 2 3 4'
> >> > (+/ % #)0 1 2 3 4
> >> >
> >> > For point 2, you can use gerunds to pass around verbs in a list:
> >> >
> >> > ger =: +`-`*`%
> >> > ger
> >> > ┌─┬─┬─┬─┐
> >> > │+│-│*│%│
> >> > └─┴─┴─┴─┘
> >> > 10 ((1{ger) `: 0) 20
> >> > _10
> >> >
> >> > There's a massive amount of uses for gerunds, like / , ^: , } , and so
> >> > on...
> >> >
> >> > If you'd want to do these things (make a noun (or list there of)) out of
> >> > any type of word, I think you should be looking at atomic representation.
> >> >
> >> > Jan-Pieter
> >> >
> >> > 2015-04-14 10:11 GMT+02:00 Jon Hough <[email protected]>:
> >> >
> >> > > I have a couple of questions:
> >> > > 1. Is it possible to convert a verb, e.g. +/%# , to a string?": '+/%#
> >> > > 2
> >> > 3
> >> > > 4' executes a stringed verb with an argument. But how would I convert
> >> > > a
> >> > > verb to a string in the first place?
> >> > > Also, I discovered the eval verb
> >> > >
> >> > >
> >> > > eval=: 1 : 0
> >> > >
> >> > > ". 'w =. ' , u
> >> > >
> >> > > (ar < 'w') ab
> >> > >
> >> > > )
> >> > >
> >> > >
> >> > > Does this have an inverse?
> >> > >
> >> > > 2. If I have two verbs (or conjunctions, adverbs for that matter), can
> >> > > I
> >> > > not pass them around in a list?
> >> > > e.g. in other languages, like C# I can put functions into a list
> >> > > (List<Action> for example).
> >> > > I searched JforC and the J website and couldn't find any way to do
> >> > > this.
> >> > > Thanks Jon
> >> > > ----------------------------------------------------------------------
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