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Groups > comp.lang.java.programmer > #19428

Re: AffineTransform interpolation

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On 10/11/2012 09:17 PM, Martin Gregorie wrote:
> On Thu, 11 Oct 2012 18:02:18 -0400, Arne Vajhøj wrote:
>
>> On 10/11/2012 11:23 AM, Knute Johnson wrote:
>>> On 10/10/2012 7:55 PM, Arne Vajhøj wrote:
>>>> On 10/10/2012 10:44 PM, Knute Johnson wrote:
>>>>> Anybody remember the name of the programming language from the 70s
>>>>> that had a bunch of built functions for things like matrix math?  I
>>>>> think it started with an A?  School had a PDP 8 or 11 and it ran on
>>>>> that.
>>>>
>>>> APL?
>>>
>>> That's it Arne.  It's been so long I just couldn't remember any more.
>>> I wonder if it is still used?
>>
>> I think it is quite rare.
>>
>> But it is still used.
>>
> It used to be described as the ultimate write-only language. I remember
> it being said that Ken Iverson wrote a GUI style text editor in 25 lines
> of APL, but was unable to understand it six months later.
>
>> I believe one of the more popular flavors/offspring is J:
>>
> ... also by Iverson!
>
>
As far as J (or K for that matter) is concerned, it doesn't take but 
some regular use of the language to master the symbols; the mnemonics 
are pretty decent, and the extra operations created by combination with 
. and : relate quite well.

*Because* the language is so concise you typically have much less code 
that you have to look at in order to figure out what's going on. Not 
necessarily so with a pass of execution spread out over umpteen classes 
and methods in Java or C#.

As wit any other language there is poor code written in J and good code 
written in J. Good variable names, and choosing explicit or implicit 
control structures as best suited, and in general not being too clever, 
lead to readable and maintainable J code.

AHS

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AffineTransform interpolation bob smith <bob@coolfone.comze.com> - 2012-10-10 13:12 -0700
  Re: AffineTransform interpolation Roedy Green <see_website@mindprod.com.invalid> - 2012-10-10 13:23 -0700
  Re: AffineTransform interpolation Knute Johnson <nospam@knutejohnson.com> - 2012-10-10 13:46 -0700
  Re: AffineTransform interpolation Jeff Higgins <jeff@invalid.invalid> - 2012-10-10 17:31 -0400
  Re: AffineTransform interpolation Eric Sosman <esosman@comcast-dot-net.invalid> - 2012-10-10 18:29 -0400
  Re: AffineTransform interpolation Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2012-10-10 16:55 -0700
    Re: AffineTransform interpolation Lew <lewbloch@gmail.com> - 2012-10-10 17:02 -0700
  Re: AffineTransform interpolation Knute Johnson <nospam@knutejohnson.com> - 2012-10-10 19:44 -0700
    Re: AffineTransform interpolation Gene Wirchenko <genew@ocis.net> - 2012-10-10 19:47 -0700
    Re: AffineTransform interpolation Arne Vajhøj <arne@vajhoej.dk> - 2012-10-10 22:55 -0400
      Re: AffineTransform interpolation Knute Johnson <nospam@knutejohnson.com> - 2012-10-11 08:23 -0700
        Re: AffineTransform interpolation "Aaron W. Hsu" <arcfide@sacrideo.us> - 2012-10-11 14:00 -0400
        Re: AffineTransform interpolation Arne Vajhøj <arne@vajhoej.dk> - 2012-10-11 18:02 -0400
          Re: AffineTransform interpolation Martin Gregorie <martin@address-in-sig.invalid> - 2012-10-12 00:17 +0000
            Re: AffineTransform interpolation Gene Wirchenko <genew@ocis.net> - 2012-10-11 20:03 -0700
            Re: AffineTransform interpolation Arved Sandstrom <asandstrom2@eastlink.ca> - 2012-10-17 20:01 -0300
    Re: AffineTransform interpolation markspace <-@.> - 2012-10-10 20:21 -0700

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