"Dan Bron" <[EMAIL PROTECTED]> wrote:
> Mark's message inspired me to keep my ghost chasing skills sharp, lest he
> take my business.
Thanks! (by the way, your analysis of the 13!: adverbs was much more
complete than mine).
If you're in to archaeology, Here are a couple of ghosts that I found
from ancient versions of J:
}:: (Adverb "Store", supposedly works like } but using indexing like {::)
exists in every version of J I have, but produces a Nonce error.)
I. (Adverb "Integral" in some versions of J prior to 4.06d;
it seemed to be equivalent to (d. _1) or (D. _1))
You used to be able to form 'weird' gerunds from non-ASCII characters 128+.
Roger removed this ability shortly after I pointed it out.
(This worked in J 4 and early versions of J 5 but not 5.04 or later).
The values seem to follow dictionary order for digraphs, including
predictable holes for non-assignable entities like =. m. (and unassigned
ones like ?: and `.), with soms strange functions and trigraphs at the end.
There are three that merit special attention. In 4.06d, these are:
k =: (<232{a.)@.0 NB. _48: - a new constant verb
a =: (<233{a.)@.0 NB. } - just another alias for Amend
e =: (<234{a.)@.0 NB. Bizarre monad ê that crashes J
-- Mark D. Niemiec <[EMAIL PROTECTED]>
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