The answer is more obvious if you use extended precision: %. 2 3 4x 2r29 3r29 4r29 +/*: 2 3 4 29
(+/@:*: ; %. ) x: 1 4 5 8 9 ┌───┬─────────────────────────────┐ │187│1r187 4r187 5r187 8r187 9r187│ └───┴─────────────────────────────┘ On Wed, Apr 23, 2014 at 7:13 PM, alexgian <alexg...@blueyonder.co.uk> wrote: > Just wondering: > %. 2 3 4 > 0.0689655 0.103448 0.137931 > > Which is fair enough enough at one level, I suppose, since the dot product > of the two arrays IS 1, but what system/equation is being solved here? > Obviously, there are infinite solutions. Why that one? > IOW, which "matrix" is being inverted here? > > Thanks > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
