III. Definitions ( http://www.jsoftware.com/help/dictionary/dict3.htm )
explains the rank information shown in the vocabulary entries for verbs.
Most of the other entries also have what it seems to be the rank
information of verbs that they produce. The following are just a few
related questions:
What is the meaning of _ in the Evoke (m~) entry?
The entry for Even (..) (and Odd (.:)) has no rank information. However, I
have not been able to produce verbs with ranks other than _ 0 0 (as
reported by b.0). Incidentally, it is stated that
u .. v ↔ (u + u&v) % 2:
However, from my point of view, there are two related main differences:
rank, for
example,
(^ .. -) b.0
_ 0 0
((^ + ^&-) % 2:) b.0
_ _ _
and domain, for example,
1 2 ((^ + ^&-) % 2:) 3 4
0 8.03125
1 2 (^ .. -) 3 4
|domain error
| 1 2 (^ ..-)3 4
u .. v is defined as a monadic verb (the trailing 0 0 reported by b.0
appears to be a default filler as in {: b.0) as its entry discussion seems
to imply. Presumably there was a good reason for this constraint. What is
it?
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