HI Skip, It was in august ,
Arie Groeneveld : http://jsoftware.com/pipermail/programming/2017-August/048293.html Start of thread : http://jsoftware.com/pipermail/programming/2017-August/048275.html PS The J Forum archive is a real gold mine On Wed, Nov 8, 2017 at 2:17 AM, 'Skip Cave' via Programming < [email protected]> wrote: > Jimmy, > > Can you give me the link to the topic on the J programming forum where > > Arie > Groeneveld and others discuss verbs that perform all permutations of x size > taken from y items. > > You stated that Arie came up with this solution: > vari =: 4 :'y,/@:(],"1 0 -."1)^:(x-1) ,.y' > > I would like to see others' solutions to that same problem. > > Skip > > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
