Is this what you need? #:i.4 0 0 0 1 1 0 1 1 'a b c d'=: #:i.4 a 0 0 b 0 1 c 1 0 d 1 1
On Wed, Dec 11, 2013 at 11:36 AM, Jon Hough <jgho...@outlook.com> wrote: > Hi, > > > I saw in the J labs the example for the group Z_4 (cyclic group of order > 4). > > > > I am now trying to ape this method to create the group Z_2 x Z_2 (direct > product of cyclic group order 2 with itself). > > This is what I have done so far: > > > a =: 0 0 > b =: 0 1 > c =: 1 0 > d =: 1 1 > > > f =: 2&|@+ > > > This is the group operator, essentially mod 2 addition. > > Q: How can I create a,b,c,d more simply? Perhaps with a single verb, > instead of explicitly creating each element? > > > > e.g. a verb or train that returns: > 0 0 > 0 1 > 1 0 > 1 1 > > Thanks for your patience. > > Jon > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- *Kenneth Lettow* *Director of Web Analytics and Market Intelligence* *ThomasNet.com* Five Penn Plaza, 8th Floor New York, NY 10001 *: klet...@thomasnet.com *(*: 212.290.8713 www.thomasnet.com ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
