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Groups > comp.lang.python > #21559

Re: are int, float, long, double, side-effects of computer engineering?

Newsgroups comp.lang.lisp, comp.lang.python
From Albert van der Horst <albert@spenarnc.xs4all.nl>
Subject Re: are int, float, long, double, side-effects of computer engineering?
Date 2012-03-13 10:40 +0000
Message-ID <m0tkbh.7cb@spenarnc.xs4all.nl> (permalink)
Organization Dutch Forth Workshop
References <5aaded58-af09-41dc-9afd-56d7b7ced239@d7g2000pbl.googlegroups.com>

Cross-posted to 2 groups.

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In article <5aaded58-af09-41dc-9afd-56d7b7ced239@d7g2000pbl.googlegroups.com>,
Xah Lee  <xahlee@gmail.com> wrote:
<SNIP>
>
>what i meant to point out is that Mathematica deals with numbers at a
>high-level human way. That is, one doesn't think in terms of float,
>long, int, double. These words are never mentioned. Instead, you have
>concepts of machine precision, accuracy. The lang automatically handle
>the translation to hardware, and invoking exact value or infinite
>precision as required or requested.

With e.g. a vanderMonde matrix you can easily make Mathematica fail.
If you don't understand what a condition number is, you can't use
Mathematica. And yes condition numbers are fully in the realm
of concepts of machine precisions and accuracy.

Infinite precision takes infinite time. Approaching infinite precious
may take exponentional time.

>
> Xah

Groetjes Albert

--
-- 
Albert van der Horst, UTRECHT,THE NETHERLANDS
Economic growth -- being exponential -- ultimately falters.
albert@spe&ar&c.xs4all.nl &=n http://home.hccnet.nl/a.w.m.van.der.horst

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Thread

are int, float, long, double, side-effects of computer engineering? Xah Lee <xahlee@gmail.com> - 2012-03-05 17:11 -0800
  Re: are int, float, long, double, side-effects of computer engineering? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-03-06 02:14 +0000
  Re: are int, float, long, double, side-effects of computer engineering? Westley Martínez <anikom15@gmail.com> - 2012-03-05 19:17 -0800
  Re: are int, float, long, double, side-effects of computer engineering? Tim Roberts <timr@probo.com> - 2012-03-05 21:26 -0800
    Re: are int, float, long, double, side-effects of computer engineering? Xah Lee <xahlee@gmail.com> - 2012-03-05 22:34 -0800
      Re: are int, float, long, double, side-effects of computer engineering? "Russ P." <russ.paielli@gmail.com> - 2012-03-06 00:02 -0800
      Re: are int, float, long, double, side-effects of computer engineering? Chiron <chiron613.no.spam.@no.spam.please.gmail.com> - 2012-03-06 10:10 +0000
        Re: are int, float, long, double, side-effects of computer engineering? Roy Smith <roy@panix.com> - 2012-03-06 08:49 -0500
      Re: are int, float, long, double, side-effects of computer engineering? Calvin Kim <reader@calvinkim.org> - 2012-03-06 16:29 -0500
      Re: are int, float, long, double, side-effects of computer engineering? Westley Martínez <anikom15@gmail.com> - 2012-03-06 16:53 -0800
      Re: are int, float, long, double, side-effects of computer engineering? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-03-06 21:51 -0500
      RE: are int, float, long, double, side-effects of computer engineering? "Prasad, Ramit" <ramit.prasad@jpmorgan.com> - 2012-03-07 19:05 +0000
  Re: are int, float, long, double, side-effects of computer engineering? Chiron <chiron613.no.spam.@no.spam.please.gmail.com> - 2012-03-06 10:00 +0000
  Re: are int, float, long, double, side-effects of computer engineering? rusi <rustompmody@gmail.com> - 2012-03-06 19:25 -0800
    Re: are int, float, long, double, side-effects of computer engineering? "Russ P." <russ.paielli@gmail.com> - 2012-03-07 14:02 -0800
      Re: are int, float, long, double, side-effects of computer engineering? John Nagle <nagle@animats.com> - 2012-03-13 22:32 -0700
  Re: are int, float, long, double, side-effects of computer engineering? Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-03-13 10:40 +0000

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