Since
2 +/\ i.5
1 3 5 7
Further
ad=.1 : 'u/\'
2 + ad i.5
1 3 5 7
However
adv=.1 : 'x u/\ y'
2 + adv i.5
|domain error
Why? I suspect it is something to do with bracketing and/or ‘x’ being passed
to u.
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