d'oh .. i missed out one step .. i wanted to multiply the lot by 6 before doing the addition.
i had (2 _2) +&.> (6&*)&.> 1 2; 1 2 3 .. it was combining the [+&.>] and [(6&*)&.>] that was eluding me. On 2011-08-01 14:53, Henry Rich wrote: > + each > > or +&.> > > Henry Rich > > On 8/1/2011 9:46 AM, mijj wrote: >> J Knitting : The Naive Corner... >> >> This one is eluding me... >> >> ] A =. 1 2 ; 1 2 3 >> ┌───┬─────┐ >> │1 2│1 2 3│ >> └───┴─────┘ >> >> ] P =. (2 _2) >> 2 _2 >> >> i want to add the first [2] to each of the first [1 2] >> and add second [_2] to each of the second [1 2 3] >> >> as in : >> (2 _2) Jmagic (1 2; 1 2 3) >> ┌───┬──────┐ >> │3 4│_1 0 1│ >> └───┴──────┘ >> >> .. but that bit of Jmagic is eluding me. >> >> I don't really have a handle on this kind of thing .. i usually hack >> and get it in a couple of goes, but this one's being slippery. Snapping >> open those boxes, fiddling with the contents and snapping them closed >> before any spurious fillers sneak in is what i find to be particularly >> tricky. In this case i can't seem to orient and open things up so >> they're pointed in the right direction. In the best of a bad lot i got >> the right additions but got a spurious [2] filler too. >> >> .. anyone have a solution .. plus any helpful visualisation tips for >> dealing with arrays that become ragged and boxed? >> ---------------------------------------------------------------------- >> 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
