I agree with Raul on this. Retrofitting J to handle APL characters is a lot
of work that when done will not improve what the system can do. It's more
like a software facelift with some botox and liposuction tossed it. Taken
to extremes you end up with a Michael Jackson which makes J's well designed
character set look pretty good.
On Fri, Feb 28, 2014 at 9:45 AM, Pascal Jasmin <godspiral2...@yahoo.ca>wrote:
> "At the APL Moot two years ago, I pointed out that I could
> cut-and-pasteChinese characters into my emacs session from the web more
> successfully
> than I could do this with APL"
>
> I'd just add that many of the APL example characters discussed in this
> thread have shown up as [square] on chrome webmail client... so unreadable
> even if I understood APL.
>
>
>
>
> ----- Original Message -----
> From: Devon McCormick <devon...@gmail.com>
> To: J-programming forum <programm...@jsoftware.com>
> Cc:
> Sent: Friday, February 28, 2014 10:32:13 AM
> Subject: Re: [Jprogramming] apl character support
>
> Also, you're sacrificing some of the nice relations between some of the J
> symbols and making it less well-integrated if you throw in random APL
> characters. In the above cases, I'm thinking of the relationships between
> the variants of "power":
> ^ exponentiation, ^. log, ^: power conjunction.
>
> Working on extending J's capabilities in other areas makes much more sense
> than sprinkling APL characters into the language. Better integration of
> multi-processing, compilation of a subset of the language, better
> integration on the browser, more rosetta equivalences for different
> languages - all of these deserve more work.
>
> We need to make J more mainstream, not weirder.
>
> At the APL Moot two years ago, I pointed out that I could cut-and-paste
> Chinese characters into my emacs session from the web more successfully
> than I could do this with APL - some of the special APL characters show up
> as blobs.
>
>
> On Fri, Feb 28, 2014 at 1:10 AM, Roger Hui <rogerhui.can...@gmail.com
> >wrote:
>
> > You may think you are close to a solution but there are serious problems.
> > e.g.
> >
> > - does * denote times or exponentiation (is * the APL * or the ASCII *)?
> > - you can enter i. as ⍳ but for i: you must enter i:
> > - |. is not ⌽ but ⊖, depending on which APL you are talking about
> > - / is not / but ⌿, depending on which APL you are talking about
> > - etc.
> >
> > I will say no more, except to repeat: don't go there.
> >
> >
> >
> >
> >
> >
> > On Thu, Feb 27, 2014 at 9:39 PM, bill lam <bbill....@gmail.com> wrote:
> >
> > > With some modicitions, J can accpet both ascii and about
> > > 30 APL symbols as primitive,
> > >
> > > ⌈ >. Ceiling
> > > ⌊ <. Floor
> > > ⍴ $ Shape
> > > ∼ -. Not
> > > ∣ | Absolute value
> > > ⍳ i. Index generator
> > > ⋆ ^ Exponential
> > > − - Negation
> > > ⌹ %. Matrix inverse
> > > ○ o. Pi times
> > > ⍟ ^. Logarithm
> > > ⌽ |. Reversal
> > > ⍋ /: Grade up
> > > ⍒ \: Grade down
> > > ⍎ ". Execute
> > > ⍕ ": Monadic format
> > > ⍉ |: Monadic transpose
> > > ∈ e. Membership
> > > ↑ {. Take
> > > ↓ }. Drop
> > > ⊥ #: Decode
> > > ⊤ #. Encode
> > > ≤ <: Less than or equal
> > > ≥ >: Greater than or equal
> > > ≠ ~: Not equal
> > > ∨ +. Or
> > > ∧ *. And
> > > ⍱ +: Nor
> > > ⍲ *: Nand
> > > ← =. Is
> > >
> > > × * Signum
> > > ÷ % Reciprocal
> > >
> > >
> > > [A←4 3⍴⍳12
> > > 0 1 2
> > > 3 4 5
> > > 6 7 8
> > > 9 10 11
> > > ⌽
> > > |.
> > > ⌽A
> > > 9 10 11
> > > 6 7 8
> > > 3 4 5
> > > 0 1 2
> > > |.⌽|.A
> > > 9 10 11
> > > 6 7 8
> > > 3 4 5
> > > 0 1 2
> > > f=: '⍳'&⍳
> > > 5!:5 <'f'
> > > (226 141 179{a.)&i.
> > >
> > > Furthermore, I guess a new global parameter 9!:50/51 could
> > > be used to control 5!:x to print ascii or APL symbol
> > >
> > > Other APL symbols are rejected becuase J uses different concepts.
> > > Rotation (first axis) ⊖
> > > Reduce (first axis) ⌿
> > > Scan (first axis) ⍀
> > > Outer product ∘.
> > >
> > > --
> > > regards,
> > > ====================================================
> > > GPG key 1024D/4434BAB3 2008-08-24
> > > gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3
> > > gpg --keyserver subkeys.pgp.net --armor --export 4434BAB3
> > > ----------------------------------------------------------------------
> > > For information about J forums see http://www.jsoftware.com/forums.htm
> > >
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
> >
>
>
>
> --
> Devon McCormick, CFA
>
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
--
John D. Baker
bakerj...@gmail.com
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
