And tacit definitions can be made monadic only by appending : [: as in
r =: % : [: NB. reciprocal
r 4
0.25
2 r 4
|domain error: r
| 2 r 4
2 % 4
0.5
Kip Murray
Tracy Harms wrote:
During my trials, I had it locked in my head that '[: is a suicide verb...
so how do I force a verb to be monadic'.
Steven,
If this was a question, note the last part of the Dictionary listing
for Explicit Definition:
The definitions of the monadic and dyadic cases produced by 3 : 0 are
separated by a colon on a line by itself; if none occurs, the domain
of the dyadic case is empty.
As an example:
squareroot=: 3 : '%:y'
squareroot 2
1.41421
4 squareroot 2
|domain error: squareroot
| 4 squareroot 2
Tracy
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