Well, I'm having a bit of trouble getting my head around "key", I'll keep
at it though...
However I was inspired by Raul's solution to come up with something that
worked and I understood.
Well, sort of understood anyway, why does the evenoddrows verb not need to
be (0 2 |: @ reshape2s) ?
reshape2s =. ;$~(2%~0{$),2,1{$
evenoddrows =. 0 2 |: reshape2s
evenoddrows i. 8 4
0 1 2 3
8 9 10 11
16 17 18 19
24 25 26 27
4 5 6 7
12 13 14 15
20 21 22 23
28 29 30 31
Hope that's not too inefficient
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