The same observations go for all operators which depend on their argument’s rank, such as @, &, or &. :
<@(,"_1)~ i.3 ┌───┐ │0 0│ │1 1│ │2 2│ └───┘ Louis > On 07 Aug 2017, at 16:55, Louis de Forcrand <[email protected]> wrote: > > Yes I guess it could be replaced by > > u”_1”_1 _ > > I would guess it is the intended behavior as b.0 reports > infinite rank, but that is what I find strange. > > Louis > >> On 07 Aug 2017, at 16:47, Xiao-Yong Jin <[email protected]> wrote: >> >> I remembered I had problem with this and ended up specifying both left and >> right rank. >> >> JVERSION >> Engine: j806/j64avx/darwin >> Beta-4: commercial/2017-06-27T12:55:06 >> Library: 8.06.03 >> Platform: Darwin 64 >> Installer: J806 install >> InstallPath: /applications/j64-806 >> Contact: www.jsoftware.com >> +"_1 _ b.0 >> _ _ _ >> +"_1 _/~i.3 >> 0 1 2 >> 1 2 3 >> 2 3 4 >> >> I'm not sure if it is the intended behavior. >> >> >>> On Aug 7, 2017, at 3:40 PM, Louis de Forcrand <[email protected]> wrote: >>> >>> +"0/~ i.3 >>> 0 1 2 >>> 1 2 3 >>> 2 3 4 >>> +"_1/~ i.3 >>> 0 2 4 >>> +"0 b.0 >>> 0 0 0 >>> +"_1 b.0 >>> _ _ _ >>> >>> I understand that this is dictionary compliant: >>> >>> "In general, each cell of x is applied to the entire of y . Thus x u/ y is >>> equivalent to x u"(lu,_) y where lu is the left rank of u ." >>> >>> +"_1 b.0 >>> _ _ _ >>> >>> So u"_1/ -: u"_ _ . Wouldn’t it be better though if u"_1/ -: u"_1 _ , >>> or if (u”_1 b.0) -: _1 _1 _1 (or any other negative rank)? >>> I ran into this while trying to use ,"_1/ , which I can replace by >@{@,&< , >>> but I still find this strange. >>> >>> Louis >>> >>> ---------------------------------------------------------------------- >>> 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 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
