I hadn't seen that - thanks for the pointer! Please excuse typos; composed on a handheld device.
On Apr 25, 2013, at 8:49 PM, Kenneth Lettow <[email protected]> wrote: > Hey Dan, have you seen EEM's at play with J article? > http://www.jsoftware.com/jwiki/Doc/Articles/Play191 > > Ken > > > On Thu, Apr 25, 2013 at 7:30 PM, Dan Bron <[email protected]> wrote: > >> I'm playing the Game of Nim with a colleague. He's an old hand and knows >> all the patterns by heart. I do not. I can't beat him. >> >> But I can do this: >> >> winNim =: (* 0&<)@(- (~:"1 ~:/)&.#:) >> >> So if you have a Nim board like this: >> >> 1 1 1 1 1 >> 1 1 1 1 >> 1 1 1 >> 1 1 >> 1 >> >> You can win like this: >> >> winNim 5 4 3 2 1 >> 1 0 1 0 1 >> >> That is, remove one stick from the pile of 5, or the pile of 3, or the pile >> of 1. >> >> A bandaid for my pride. >> >> -Dan >> >> >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm > > > > -- > Ken Lettow > Director of Market Intelligence & Web Analytics > ThomasNet > (212) 290-8713 > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
