Remember g is [: % [: # [ and the effect of x g y is % # (x [ y) Review the diagrams in http://www.jsoftware.com/help/dictionary/dictf.htm and the comment about [:
I had a reason for mentioning that # 1 2 is 2 . Then % 2 is 0.5 Sent from my iPad On Feb 6, 2012, at 1:19 AM, "Linda Alvord" <lindaalv...@verizon.net> wrote: > If what Bill states is correct > > Every verb in J is ambivalent determined by its context. If you put a noun > argument for it, it becomes dyadic. > > Then shouldn't the result be > > 1 2 g 3 4 5 > 1 1 > > Since > > 1 2 % 1 2 > 1 1 > > Linda > > -----Original Message----- > From: programming-boun...@jsoftware.com > [mailto:programming-boun...@jsoftware.com] On Behalf Of Linda Alvord > Sent: Monday, February 06, 2012 2:08 AM > To: 'Programming forum' > Subject: Re: [Jprogramming] Another early morning exercise > > I can see now that [ is a verb. There is still something I do not > understand about g . > > g=: 13 :'%#x' > g > [: % [: # [ > g=: 13 :'%#x' > x=: 3 4 5 > #x > 3 > %3 > 0.333333 > g 3 4 5 > 0.333333 > > That is fine, but look at your example: > > 1 2 g 3 4 5 > 0.5 > > How did this happen? > > 1 2 [ 3 4 5 > 1 2 > %1 2 > 1 0.5 > > What happened to the 1 ? The result should be a list. > > Maybe the result should be "I'm only a monadic function and I can't do that. > > Linda > > -----Original Message----- > > From: programming-boun...@jsoftware.com > [mailto:programming-boun...@jsoftware.com] On Behalf Of Kip Murray > Sent: Monday, February 06, 2012 12:46 AM > To: Programming forum > Subject: Re: [Jprogramming] Another early morning exercise > > About [ > > 2 [ 3 > 2 > [ 3 > 3 > > Thus [ is a verb. In general x [ y is x and [ y is y . > > > About g > > # 1 2 > 2 > 1 2 g 3 4 5 > 0.5 > > # 3 4 5 > 3 > g 3 4 5 > 0.333333 > > > About f > > 0 1 2 # 3 4 5 > 4 5 5 > 0 1 2 f 3 4 5 > 0.25 0.2 0.2 > > # 3 4 5 > 3 > f 3 4 5 > 0.333333 > > > Kip > > On 2/5/2012 9:32 PM, Linda Alvord wrote: >> Dave Lambert mentioned to me in a post that I had made a typing error > typing >> x instead of y : >> >> i=: 13 :'*:@+/x' >> i i.4 >> 456976 >> >> So, here are two questions: >> >> f=: 13 :'%#y' >> f >> [: % # >> g=: 13 :'%#x' >> g >> [: % [: # [ >> >> Is g a request for a dyadic function or a monadic one? Since the > results >> are different, why does g have the right [: before (to the right of) > two >> "verbs" if [ represents a noun ? >> >> I've often seen this before and wondered about it. >> >> Linda >> -----Original Message----- >> From: programming-boun...@jsoftware.com >> [mailto:programming-boun...@jsoftware.com] On Behalf Of Don Guinn >> Sent: Sunday, February 05, 2012 8:21 AM >> To: Programming forum >> Subject: Re: [Jprogramming] Another early morning exercise >> >> Don't you need to change the x to y? >> >> i=: 13 :'*:@+/y' >> i i.4 >> 456976 >> i=: 3 :'*:@+/y' >> i i.4 >> 456976 >> i=: 3 :'*:@+/x' >> i i.4 >> 676 >> >> On Sun, Feb 5, 2012 at 5:11 AM, Linda > Alvord<lindaalv...@verizon.net>wrote: >> >>> My goal has been to translate from expressions with @ to ones without >> it. >>> >>> >>> >>> f=: 13 :'x?@$y' >>> >>> 2 3 f 6 >>> >>> 2 4 2 >>> 3 2 5 >>> >>> >>> >>> g=: 13 :'x?$y' >>> >>> 2 3 g 6 >>> >>> |length error: g >>> | 2 3 g 6 >>> >>> >>> >>> h=: 13 :'?x$y' >>> >>> 2 3 h 6 >>> >>> 4 3 1 >>> 5 0 1 >>> >>> >>> >>> f >>> >>> ?@$ >>> >>> h >>> >>> [: ? $ >>> >>> >>> >>> Can you rewrite this without @ ? >>> >>> >>> >>> i=: 13 :'*:@+/x' >>> >>> i i.4 >>> >>> 456976 >>> >>> >>> >>> >>> >>> Linda >>> >>> ---------------------------------------------------------------------- >>> 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 > > ---------------------------------------------------------------------- > 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
