Or, for something written by Ken Iverson rather than Roger Stokes: http://www.jsoftware.com/help/dictionary/d610.htm
-- Raul On Sat, Feb 18, 2012 at 2:04 PM, Raul Miller <rauldmil...@gmail.com> wrote: > Here's an example of a definition for gerund: > > http://www.jsoftware.com/docs/help701/learning/14.htm > > You might argue that the definition is informal -- like most of J -- > but I do not think it's fair to say that they are not defined > anywhere. > > -- > Raul > > On Sat, Feb 18, 2012 at 1:10 PM, Dan Bron <j...@bron.us> wrote: >> I'm not sure gerunds are defined anywhere. >> >> But if they were, the phrasing might be "arrays of atomic representations", >> where the "atomic representation" characteristic is the most salient, and >> "array" has the normal meaning (and perhaps the usual question of whether a >> scalar is an array?). >> >> We often (informally) think of gerunds as vectors, because we compose them >> with ` whose product is defined to be vector, and consume them with e.g. @. >> whose (left input) is most useful when vector. But that's no reason to >> define gerunds as vectors, any more than to define selections as vectors, >> because we compose them with , , and consume them with e.g. { whose (left >> input) is frequently vector. Or saying 'string' is a string but 's' is not. >> >> Of course, in some contexts, 's' is not considered a string. So perhaps you >> are suggesting that "gerunds are are arrays of atomic representations, where >> the shape of the array has meaning"? If so, this is an interesting >> digression, which I'm happy to discuss, but perhaps we should move it to a >> different thread. >> >> The original question was not concerned with gerunds, and I doubt having the >> atomic representation of f@g (vector or scalar) in the corner of the >> result table would be satisfying. What was wanted was the string >> representation (which is produced using 5!:5, which operates on scalars, so >> shape doesn't have meaning to it, and neither does atomic representation). >> >> Anyway, when present the promise of J to newcomers, we need to take care not >> obscure the pitfalls. The literal Jenie (dJinni?) who delivers exactly what >> was asked for is rarely the hero of folklore. >> >> -Dan >> >> PS: If we wish to continue the digression, it might be better to start with >> the links below, better starting point would be wh >> >> Here's a couple places where I've attempted to capture the meaning of >> "gerund" >> >> Sidebar in NuVoc definition of ` : >> http://jsoftware.com/jwiki/Vocabulary/backtick#sidebar.3Agerunds >> >> As a necessary premise in the definition of a modifier utility: >> www.jsoftware.com/jwiki/DanBron/Snippets/DOOG#definition >> >> Please excuse typos; composed on a handheld device. >> >> -----Original Message----- >> From: Raul Miller <rauldmil...@gmail.com> >> Sender: programming-boun...@jsoftware.com >> Date: Sat, 18 Feb 2012 11:52:13 >> To: Programming forum<programming@jsoftware.com> >> Reply-To: Programming forum <programming@jsoftware.com> >> Subject: Re: [Jprogramming] Verb display in function tables >> >> Ok... >> >> ...except that gerunds are defined as vectors. >> >> Conceptually speaking, if it's a scalar, or a matrix, it's something >> different. It would still be gerund-like, in character (we can >> trivially extract gerunds from it), but if we try using such things >> with primitives that handle gerunds, we are getting into undocumented >> territory. >> >> -- >> Raul >> >> On Sat, Feb 18, 2012 at 11:18 AM, Dan Bron <j...@bron.us> wrote: >>> That makes sense. >>> >>> My personal impression was that the original vector-ness was an >>> (unintentional) side-effect of the method used to remove the trailing atom >>> (select-all-but-last as opposed to select-first). >>> >>> The proposed scalar should be a transparent replacement for the original >>> vector, whose shape wasn't serving a specific purpose (normally, in J, >>> shape carries meaning, and where it doesn't it is misleading: at best >>> superfluous, but often pernicious). >>> >>> -Dan >>> >>> >>> Please excuse typos; composed on a handheld device. >>> >>> -----Original Message----- >>> From: Raul Miller <rauldmil...@gmail.com> >>> Sender: programming-boun...@jsoftware.com >>> Date: Sat, 18 Feb 2012 10:41:56 >>> To: Programming forum<programming@jsoftware.com> >>> Reply-To: Programming forum <programming@jsoftware.com> >>> Subject: Re: [Jprogramming] Verb display in function tables >>> >>> I often do that myself, but in this case, the original phrase was also >>> generating a 1 element vector, so I decided that a 1-element vector >>> was an appropriate result. >>> >>> -- >>> Raul >>> >>> On Sat, Feb 18, 2012 at 9:48 AM, Dan Bron <j...@bron.us> wrote: >>>> Because in many contexts, a scalar is more convenient than a 1-element >>>> vector, I make a habit of tacking on a {. as in {.u`'' . >>>> >>>> -Dan >>>> >>>> >>>> On Feb 18, 2012, at 9:32 AM, Raul Miller <rauldmil...@gmail.com> wrote: >>>> >>>>> I would use u`'' >>>>> >>>>> avg 1 :'u`''''' >>>>> +---+ >>>>> |avg| >>>>> +---+ >>>>> avg >>>>> |value error: avg >>>>> >>>>> -- >>>>> Raul >>>>> >>>>> >>>>> On Fri, Feb 17, 2012 at 1:57 PM, Edward Mokurai Cherlin >>>>> <moku...@sugarlabs.org> wrote: >>>>>> I had thought that I would not be able to get a program to show the >>>>>> definition of a function given its name, but I found a kludge for the >>>>>> purpose using tie. Now I would like to know whether somebody has a >>>>>> direct solution. My application for this capability is a defined >>>>>> adverb for producing function tables. >>>>>> >>>>>> t=.1 :(':';'2 2$(>1 0#u`u);y;(,.x);x u/ y') >>>>>> l +t l=.i.5 >>>>>> ┌─┬─────────┐ >>>>>> │+│0 1 2 3 4│ >>>>>> ├─┼─────────┤ >>>>>> │0│0 1 2 3 4│ >>>>>> │1│1 2 3 4 5│ >>>>>> │2│2 3 4 5 6│ >>>>>> │3│3 4 5 6 7│ >>>>>> │4│4 5 6 7 8│ >>>>>> └─┴─────────┘ >>>>>> >>>>>> The question then is whether somebody knows a less ugly way to display >>>>>> the value of u in executing this adverb than >1 0#u`u or >0{u`u . >>>>>> >>>>>> -- >>>>>> Edward Mokurai (默雷/धर्ममेघशब्दगर्ज/دھرممیگھشبدگر ج) Cherlin >>>>>> Silent Thunder is my name, and Children are my nation. >>>>>> The Cosmos is my dwelling place, the Truth my destination. >>>>>> http://wiki.sugarlabs.org/go/Replacing_Textbooks >>>>>> ---------------------------------------------------------------------- >>>>>> 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 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
