ts=: 6!:2, 7!:2@] a=: <.^27.6*1000 1000?@$0 (<./ , >./),a NB. range 1 969445705749
1 10{.a NB. well distributed by magnitude.
28924875 7800 76149773002 5 43075 11444 14 16204707 2654 128265677156
ts'":a'
0.142087 5.03411e7
ts'13":a'
0.809249 1.67803e7
I'd thought that dyadic format would beat the monad for time.
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