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Home › Forums › kdb+ › Five easy pieces #4: Little Six › Re: Five easy pieces #4: Little Six

  • rolf

    Member
    June 4, 2022 at 12:00 am

    i think this is what you are after

    q)f:{abs(til[x]div 2)-x#(x-1),0} 

q)f each 2*1+til 5 

1 0 
3 0 2 1 
5 0 4 1 3 2 
7 0 6 1 5 2 4 3 
9 0 8 1 7 2 6 3 5 4

    i cannot claim authorship

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