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Nov 19, 2015 at 2:47 vote accept Allen Knutson
Nov 19, 2015 at 2:47 comment added Allen Knutson $n-1$ is good enough for me, especially if these coefficients are then nonnegative. Thanks!
Nov 18, 2015 at 17:00 review First posts
Nov 18, 2015 at 17:04
Nov 18, 2015 at 17:00 history answered Jacob White CC BY-SA 3.0