compacting an expression

[Jack Andrews]

can this expression be written in fewer characters?

  (33+!7),42+!84

what about this one?

  (20+!8),(33+!7),42+!84

ta, jack

[kuentang]

I assume that the espression is in K and not in Q.
My more compact solution would be

,/(33 42)+!:'7 8

[Attila Vrabecz]

.c.e:#:
c)(33+!7),42+!84
14
c)(33+!93)_/7 7
13
c)(20+!8),(33+!7),42+!84
22
c)(20+!106)_/(5#8),2#15
21

But I doubt that this is what you were looking for ;)

Cheers,
Attila

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[Aaron Davies]

parens aren't needed

,/33 42+!:'7 84

handles the other one two

,/20 33 42+!:'8 7 84

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[Jack Andrews]

Thanks kuentang, aaron,

does : mean "monadic" so !: in your expressions mean "monadic !"?

[Attila Vrabecz]

correct
you only need the : if there is no data or verb right next to it
so for example
in !10 ! is monadic
but if you would say
f:!:
l:(!:;.:) /for key and value
or do something like
!:'1 2 3
-:\1 2 3
you need the :

Cheers,
Attila