x {~^:n y with boxed integer n seems to ignore the integer:
x =: 1 2 3 4 4
y =: 0
u =: {~
n =: <3
x ({~)^:n y NB. Seems to behave as if (n -: a:)
0 1 2 3 4
x&({~)^:n y NB. Equivalent from dictionary [1]
0 1 2
x u^:n y NB. Works OK if {~ is given a name
0 1 2
x&u^:n y
0 1 2
9!:14'' NB. Linux
j602/2008-03-03/16:45
[1] http://www.jsoftware.com/help/dictionary/d202n.htm
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