This is not terrible, though the >: rankles: (/: ] + 0&> * [: >: >./ - <./) i: 10 0 1 2 3 4 5 6 7 8 9 10 _10 _9 _8 _7 _6 _5 _4 _3 _2 _1
I am sure somebody else has a prettier solution. -E On Fri, 22 Oct 2021, R.E. Boss wrote:
Some time ago I stumbled on an elegant solution to sort a sequence of numbers such, that first the non-negative numbers were sorted up, immediately followed by the negative numbers sorted up, like foo i: 10 0 1 2 3 4 5 6 7 8 9 10 _10 _9 _8 _7 _6 _5 _4 _3 _2 _1 Any takers? R.E. Boss ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
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