Thanks for all your help. Here are some simplifications I finally
understand:
f =: j./&i:/
g =: (i:@[ j./ i:@])/
h=: 13 :'(([:i:[)j./[:i:])/y'
(f-:g)1 2
1
(f-:h) 1 2
1
5!:4 <'f'
-- / --- j.
-- / --- & -+- i:
5!:4 <'g'
-- i:
-- @ -+- [
│
+- / --- j.
-- / ---+
│ -- i:
L- @ -+- ]
5!:4 <'h'
-- [:
------+- i:
│ L- [
│
-- / ---+- / --- j.
│
│ -- [:
L-----+- i:
L- ]
f
j./&i:/
g
(i:@[ j./ i:@])/
h
(([: i: [) j./ [: i: ])/
Function f has only & NB. Raul
Function g has only @ NB. Kip
Function h has neither NB. Linda
Linda
-----Originail Message---
From: [email protected]
[mailto:[email protected]] On Behalf Of Ric Sherlock
Sent: Saturday, February 09, 2013 4:29 AM
To: Programming JForum
Subject: Re: [Jprogramming] A tale of two nouns
No. It says that '(' is a noun.
Your experiments show that you can't assign "nothing" (or purely
punctuation) to a name. Just as:
o=:
|syntax error
| o=:
On Sat, Feb 9, 2013 at 10:24 PM, Linda Alvord <
<mailto:[email protected]> [email protected]>wrote:
> Thanks your sources are helpful.
>
> Here's another weird one. Grammar says that parentheses are punctuation.
>
>
> o=:(+)
> o
> +
> nc <'o'
> 3
> o=:()
> |syntax error
> | o=:()
> o=:(
> |syntax error
> | o=:(
>
> o=:'('
> o
> (
> nc <'o'
> 0
>
> Does this say ( is a noun?
>
> Linda
>
> -----Original Message-----
> From: <mailto:[email protected]>
[email protected]
> [ <mailto:[email protected]>
mailto:[email protected]] On Behalf Of km
> Sent: Saturday, February 09, 2013 4:07 AM
> To: <mailto:[email protected]> [email protected]
> Subject: Re: [Jprogramming] A tale of two nouns
>
> Linda,
>
> f =: '=:' NB. f is a string of two characters
> $f
> 2
>
> Your g appears to be a string of three characters.
>
> About your sentence attempting to define i check for a space between
> = and :
>
> Finally, about =: please see Appendix E. Parts of Speech:
>
> <http://www.jsoftware.com/docs/help701/dictionary/partsofspeech.htm>
http://www.jsoftware.com/docs/help701/dictionary/partsofspeech.htm
>
> There you will see =: is not a "verb" in the J sense of that term.
> Also see II. Grammar
>
> <http://www.jsoftware.com/docs/help701/dictionary/dict2.htm>
http://www.jsoftware.com/docs/help701/dictionary/dict2.htm
>
> where =: is identified as a sixth "part of speech" Copula.
>
> Kip
>
> Sent from my iPad
>
>
> On Feb 9, 2013, at 2:24 AM, "Linda Alvord" <
<mailto:[email protected]> [email protected]>
> wrote:
>
> > f =: '=:'
> >
> > nc <'f'
> >
> > 0
> >
> > g =: '= :'
> >
> > nc <'g'
> >
> > 0
> >
> > h =: *:
> >
> > h 7 11
> >
> > 49 121
> >
> > i = : *:
> >
> > i = :*:
> >
> > i 7 11
> >
> >
> >
> > i 7 11
> >
> > |value error: i
> > | i 7 11
> >
> >
> >
> > f and g are both nouns, but they aren't the same noun.
> >
> >
> >
> > Is f really a noun? If "is" is a verb, isn't "=:" a verb?
> >
> >
> >
> > Linda
> >
> > --------------------------------------------------------------------
> > -- For information about J forums see
> > <http://www.jsoftware.com/forums.htm>
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>
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