I got curious about producing all elements of an array of the shape S.
This is what I came up with:
[S=.2 4 2
[prd=.1,}:*/\ S
[c=.(*/S)
S|"(0 1) prd ([:<.%~)"(0 1) i. c
Which is kind of similar to:
{ (i.2);(i.4);(i.2)
... hmm... but how do you raise those results into 3x1 lists?
Background:C# has some limitations when it comes to using pointers against n
dimensional arrays of type T (one dimensional are mostly okay). There's a
concept of "blitable". I'll save you any more tedium. Was just using J to
think around the issue... which revealed some nice J features + possibly a
deeper insight. Just thought I'd share that.
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