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MathGroup Archive 2006

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Re: Re: Programming style: postfix/prefix vs. functional

  • To: mathgroup at smc.vnet.net
  • Subject: [mg70701] Re: [mg70633] Re: [mg70587] Programming style: postfix/prefix vs. functional
  • From: "Chris Chiasson" <chris at chiasson.name>
  • Date: Mon, 23 Oct 2006 02:51:13 -0400 (EDT)
  • References: <200610200921.FAA11092@smc.vnet.net> <200610210914.FAA29189@smc.vnet.net> <2A8E209D-C4D9-45C1-933B-5E3D955D99C5@mimuw.edu.pl> <acbec1a40610210543k3a861eb7tb3bdb777170618b@mail.gmail.com> <2F11E8C9-D5C5-45EC-BA91-7F52E72CCC3B@mimuw.edu.pl> <acbec1a40610220224h4d154c37rd6b0d909820cfd19@mail.gmail.com> <0F88AC40-82C0-4E0C-9872-EC6EF0EECAC2@mimuw.edu.pl> <acbec1a40610220408k5215a9fdh89d3fa5d7f840661@mail.gmail.com> <EF8459BF-7BF4-4EAC-9068-463015ED18B4@mimuw.edu.pl>

On 10/22/06, Andrzej Kozlowski <akoz at mimuw.edu.pl> wrote:
> Well, then, if you must have a function, how about saying that @
> "corresponds" to #1[#2]& ?

That is a close definition, but it doesn't quite match if f has
different attributes than Function.

I could possibly write a MakeExpression rule that would approximate @
(using another character without a built in meaning, obviously) in a
notebook environment, but I don't (think I) know how to write an
approximation for a console environment.

On 10/22/06, Andrzej Kozlowski <akoz at mimuw.edu.pl> wrote:
> Well, then, if you must have a function, how about saying that @
> "corresponds" to #1[#2]& ? While it is not a built-in function, it
> does satisfy the relationship
>
> f@x === #1[#2]&[f,x]
>
> ??
>
> Andrzej
>
>
> On 22 Oct 2006, at 20:08, Chris Chiasson wrote:
>
> > On 10/22/06, Andrzej Kozlowski <akoz at mimuw.edu.pl> wrote:
> >> Why
> >> does it matter whether something "corresponds" to a "function applied
> >> at some particular level" or is "just a shorthand" for some
> >> particular expression?
> >
> > I have wondered about it for a long time. I am just hoping to nail
> > down a definitive answer to improve my Mathematica knowledge.
> >
> > --
> > http://chris.chiasson.name/
>
>


-- 
http://chris.chiasson.name/


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