thanks for the very clear explanation! chris
On 28 October 2014 14:08, Roger Hui <[email protected]> wrote: > The dyad n f\x provides infix of size n. Reduction is not automatically > provided so if you want reduction you have to specify it explicitly: > > 2 +/\ 1+i.10 > 3 5 7 9 11 13 15 17 19 > > Since reduction is not built in you can apply other functions, such as < > (box): > > 2 <\ 1+i.10 > ┌───┬───┬───┬───┬───┬───┬───┬───┬────┐ > │1 2│2 3│3 4│4 5│5 6│6 7│7 8│8 9│9 10│ > └───┴───┴───┴───┴───┴───┴───┴───┴────┘ > > > > On Mon, Oct 27, 2014 at 7:59 PM, Chris Wright <[email protected]> > wrote: > > > in apl (using i. for iota) > > > > 2+/i.10 > > > > gives pair wise additions > > > > 3 5 7 9 11 13 15 17 19 > > > > but j gives: > > > > 2 3 4 5 6 7 8 9 10 11 > > > > is there an n-wise reduction idiom or glyph for j? > > > > cheers and thanks > > > > Chris > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
