On the J Wiki, find "The Accessible Dictionary" in the new users section. The description of @ vs @: is described there.
Henry Rich On 2/27/2014 8:15 PM, Jon Hough wrote: > Another beginner question . I'm trying to understand how atop (@) works.I've > read this http://www.jsoftware.com/help/dictionary/d620.htm > But I made my own example and the results are not as I expected.I made a > tacit dyadic verb: > func =: <./ @ + > Here + is dyadic and <./ is monadic. > If I do > 1 2 func 3 4 > The result is > 4 6 > But from the above link: x u@v y ↔ u x v y > > So this verb is equivalent to adding the two vectors x and y and then finding > the min element of the resulting vector. So I think the result should just be > 4.In other words, why is my result 4 6? > Indeed, if I break up the verb and do: > 1 2 + 3 4 > result: 4 6 <./ 4 6 > result: 4 > This is as I think it should be. Any help appreciated. > Thanks,Jon > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
