Björn... don't you start! :-))
2010/10/26 Björn Helgason <[email protected]>: > Whatever you can say about J then the documentation can be a bit difficult > to read and understand. > > I have been reading it since 1990 and I understand some of it already. > > 2010/10/26 Ian Clark <[email protected]> > >> > Which makes it more puzzling why you don't read >> > the documentation, and is quite proud of the fact. >> >> When all else fails... I read the documentation. >> >> Though judging by the time I spend reading it, I think that's >> misleading. But I try to think myself into the mind of my audience. >> It's of _that_ I'm proud. >> >> > Talking about APL (or J) without use of "array", >> > is like doing Hamlet without the prince. >> >> I guess I'm not playing Hamlet. I'm writing a crit for people who've >> seen it all before. >> >> >> >> On Tue, Oct 26, 2010 at 4:56 PM, Roger Hui <[email protected]> wrote: >> >> Counsel of perfection, Roger. >> >> Exactly what I wrote myself, in an IBM internal report in 1981. >> > >> > Which makes it more puzzling why you don't read >> > the documentation, and is quite proud of the fact. >> > >> > Talking about APL (or J) without use of "array", >> > is like doing Hamlet without the prince. >> > >> > >> > >> > ----- Original Message ----- >> > From: Ian Clark <[email protected]> >> > Date: Tuesday, October 26, 2010 8:46 >> > Subject: Re: [Jgeneral] "J In A Day" --crits please >> > To: General forum <[email protected]> >> > >> >> Counsel of perfection, Roger. >> >> >> >> Exactly what I wrote myself, in an IBM internal report in 1981. >> >> >> >> Nowadays I take the world as I find it. >> >> >> >> > in which everything--noun, verb, adverb, conjunction, >> >> > parenthesis, copula, ..., atom, table, ..., everything-- >> >> > is an "array". >> >> >> >> -- that, as it happens, is most helpful. Thank you for that insight. >> >> >> >> But for the present purpose (JinaDay) it makes me even keener to avoid >> >> the term "array". >> >> >> >> "When everybody's somebody -- then no one's anybody" >> >> (Gilbert & Sullivan, 'The Gondoliers'). >> >> >> >> >> >> >> >> On Tue, Oct 26, 2010 at 4:28 PM, Roger Hui <[email protected]> wrote: >> >> > You are putting the cart before the horse. >> >> > The implementation has to follow the description, >> >> > and you can not (should not) use the implementation >> >> > to justify the description. >> >> > >> >> > FYI: in the J implementation there is a sense >> >> > in which everything--noun, verb, adverb, conjunction, >> >> > parenthesis, copula, ..., atom, table, ..., everything-- >> >> > is an "array". But the fact would not be helpful >> >> > to a general audience. >> >> > >> >> > >> >> > >> >> > ----- Original Message ----- >> >> > From: Don Guinn <[email protected]> >> >> > Date: Tuesday, October 26, 2010 7:55 >> >> > Subject: Re: [Jgeneral] "J In A Day" --crits please >> >> > To: General forum <[email protected]> >> >> > >> >> >> 3!:3]99j1 >> >> >> e1000000 >> >> >> 10000000 >> >> >> 01000000 >> >> >> 00000000 >> >> >> 00000000 >> >> >> 00c05840 >> >> >> 00000000 >> >> >> 0000f03f >> >> >> >> >> >> J still treats a complex number as a zero rank array. >> >> >> >> >> >> 3!:3]99r2 >> >> >> e1000000 >> >> >> 80000000 >> >> >> 01000000 >> >> >> 00000000 >> >> >> 18000000 >> >> >> 30000000 >> >> >> e1000000 >> >> >> 04000000 >> >> >> 01000000 >> >> >> 01000000 >> >> >> 01000000 >> >> >> 63000000 >> >> >> e1000000 >> >> >> 04000000 >> >> >> 01000000 >> >> >> 01000000 >> >> >> 01000000 >> >> >> 02000000 >> >> >> >> >> >> Same for rationals. >> >> >> >> >> >> On Tue, Oct 26, 2010 at 8:50 AM, Raul Miller >> >> >> <[email protected]> wrote: >> >> >> >> >> >> > On Mon, Oct 25, 2010 at 9:34 PM, Donna Y >> >> >> <[email protected]> wrote: >> >> >> > > An array can have one element but it is not a scalar number. >> >> >> > > If it is an array it has not only magnitude but also direction. >> >> >> > > >> >> >> > > A scalar number by definition scales - it has magnitude - it >> >> >> > > is not a vector or an array. It has rank 0. >> >> >> > >> >> >> > I did not follow all of what you wrote, but consider: >> >> >> > >> >> >> > scalar: 1j2 (has magnitude and direction, and is an array) >> >> >> > array: i.0 1 2 3 4 (has no magnitudes and no directions, >> >> >> but still is an >> >> >> > array) >> > ---------------------------------------------------------------------- >> > For information about J forums see http://www.jsoftware.com/forums.htm >> > >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm >> > > > > -- > Björn Helgason, Verkfræðingur > Fornustekkum II > 781 Hornafirði, > t-póst: [email protected] > gsm: +3546985532 > sími: +3544781286 > http://groups.google.com/group/J-Programming > > > Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans > > góður kennari getur stigið á tær án þess að glansinn fari af skónum > /|_ .-----------------------------------. > ,' .\ / | Með léttri lund verður | > ,--' _,' | Dagurinn í dag | > / / | Enn betri en gærdagurinn | > ( -. | `-----------------------------------' > | ) | (\_ _/) > (`-. '--.) (='.'=) ♖♘♗♕♔♙ > `. )----' (")_(") ☃☠ > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
