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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