Newsgroups: comp.lang.apl
Path: watmath!watdragon!jeeves.waterloo.edu!jmlang
From: jmlang@jeeves.waterloo.edu (Je'ro^me M. Lang)
Subject: Numerology in J
Message-ID: <1992Apr21.005953.5938@watdragon.waterloo.edu>
Sender: news@watdragon.waterloo.edu (USENET News System)
Organization: University of Waterloo
Date: Tue, 21 Apr 1992 00:59:53 GMT
Lines: 36

Hello J'ers,

In J there are often "magic" numbers.
For example:

m : 1 gives an adverb
m : 2 gives a conjunction
m : 11 is a tacit verb
m : 12 is a tacit conjunction

For the cut conjunction the magic numbers are 1 _1 2 _2 0 3 _3

m `:3 evoke gerund corresponding to adverb / (Insert)
m `:6                  "         to \ (Train)
m `:0 result of the individual gerunds in m

All the things in !: (Foreign conjunction)

Name class _1 0 1 2 3 4 5 6 (not valid, undefined, not used, noun, verb
  adverb, conjunction, other)


Further, in  the paper Gerunds and Representations, (APL Quote Quad ,
APL91, p.39--46), Bernecky and Hui give 
m `: 0  (abut)
g `: 6 MIMD computation
g `: 57  Dynamic compose
g `: 59 Hook/Fork
g `:3 y (or g/y)  Insert (described as  g`:2 in the appendix)
g `:5 Case verb
g `:4 monadic recursive verb
g `:1 do until


What I would like to know is whether there is some pattern to be
discerned in these numbers? 
