>
> 13!:0 ] 1
> negx=: 1 : '(- x) u y'
> 3+negx 7
> |domain error: negx
> |negx[:0]
The problem here is that you defined an adverb with only monadic
valence, and then used it dyadically.
> negx=: (3 : 'u - y') : (4 : '(- x) u y')
> 3+negx 7
The problem here is that you never defined an adverb. You defined a
verb (using the : conjunction), and u was not defined in it.
Sounds like you want
negx =: 1 : 0
:
(- x) u y
)
or
negx =: 1 : '(u~ -)~'
Henry Rich
>
> The second definition entry should have reported a Stack Error. When Debug is
> off, the second usage attempt reports a Value Error for u, without killing the
> server.
>
> 2. I see that my copy of the software is over a year old. It is not easy to
> find release dates on the Downloads site; additional columns for engine and
> library dates would be most useful. If this problem has been fixed, I
> would be
> happy to update.
>
> 3. Dictionary sections on Monad-Dyad use are terribly brief. Discussions of
> adverb and conjunction definition processes are longer in JLearn and JfC, and
> somewhat complement each other, but still leave me somewhat confused. Are
> there yet other elaborations available?
>
> Thanks.
> --ArtAnger
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