I do not know if this is elegant, but: (; q:)@p.&10x@#&1@+&2 i. 19
-- Raul On Fri, Nov 11, 2011 at 12:07 PM, John Baker <[email protected]> wrote: > Today's date 11:11:11 is generating some interesting internet items. I saw > a cute blog posting about "repunits" > > http://mathlesstraveled.com/2011/11/11/fun-with-repunit-divisors/ > > The following j expressions generate the table shown in the blog posting. > I couldn't come up with anything more elegant. > > repunits=. 'x' ,~&.> (2 + i. 19) #&.> '1' > repunits ,. q:@". &.> repunits > > -- > John D. Baker > [email protected] > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
