Thanks Don, I knew it would be something as simple as that
On Sun, May 9, 2010 at 12:24 PM, Don Guinn <[email protected]> wrote: > J provides verb names for the numbers _9 to 9 for convenience. You can use > Rank (") to make any noun into a verb. So > > 0: ` (1"_) @. (0&<:) &> i:10 > 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 > > 1: is the same thing as 1"_ > > 0: ` (64"_) @. (0&<:) &> i:10 > 0 0 0 0 0 0 0 0 0 0 64 64 64 64 64 64 64 64 64 64 64 > > > On Sun, May 9, 2010 at 6:10 AM, Ian Gorse <[email protected]> wrote: > >> Hi list, >> >> I am currently learning / experimenting with gerunds and made this >> very simple snippet that returns 1 if x >= 0, or 0 otherwise >> >> 0: ` 1: @. (0&<:) &> i:10 >> 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 >> >> now lets say I wanted to return 64 instead of 1 >> >> 0: ` 64: @. (0&<:) &> i:10 >> |spelling error >> | 0: ` 64: @. (0&<:) &> i:10 >> | >> >> ok, that's because 64: is not a j verb, so how about.. >> >> 0: ` (2^6) @. (0&<:) &> i:10 >> |domain error >> | 0:`(2^6)@.(0&<:)&>i:10 >> >> ok, that's because (2^6) is not a function, so what about.. >> >> 0: ` (2:^6:) @. (0&<:) &> i:10 >> 0 0 0 0 0 0 0 0 0 0 64 64 64 64 64 64 64 64 64 64 64 >> >> ok, that was simple enough, so lets try 33 >> >> 0: ` (3:+3:*2:*5:) @. (0&<:) &> i:10 >> 0 0 0 0 0 0 0 0 0 0 33 33 33 33 33 33 33 33 33 33 33 >> >> this is starting to become ugly. >> >> I could easily write an explicit verb to give me the answer I am >> looking for - but I am not particularly looking to make explicit verbs >> thirty3=. 3 : '33' >> 0: ` thirty3 @. (0&<:) &> i:10 >> >> I am just wondering if I am missing something obvious? >> >> 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 > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
