Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.javascript > #25512

Re: Arithmetic compression.

Newsgroups comp.lang.javascript
Date 2014-07-22 05:12 -0700
References <a75b8873-9178-4c08-96d1-b911f9ad9ba1@googlegroups.com> <ip6ss9lb65075e7jg7ijtv3ti7jtm4a4l8@4ax.com> <lqlck0$l2b$1@news.albasani.net>
Message-ID <428013ca-346c-4791-bb5d-f12a22ebfc6d@googlegroups.com> (permalink)
Subject Re: Arithmetic compression.
From jonas.thornvall@gmail.com

Show all headers | View raw

Den tisdagen den 22:e juli 2014 kl. 11:58:24 UTC+2 skrev Stefan Weiss:
> On 2014-07-22 10:07, John Harris wrote:
> 
> > On Mon, 21 Jul 2014 13:26:27 -0700 (PDT), jonas.thornvall@gmail.com
> 
> > wrote:
> 
> > 
> 
> >>Encoding binary numbers into base-2 zeroless encoding save digit 
> 
> >>places why isn't it used is there disadvantages doing arithmetic in 
> 
> >>zeroless bases? 27 = 1 1 0 1 1 = 2 2 1 1
> 
> >   <snip>
> 
> > 
> 
> > It's not used because transistors can represent 0 and 1 in a
> 
> > non-analogue way. To represent 0, 1, and 2 you have to go analogue
> 
> > with the resulting noise, drift, etc. problems.
> 
> 
> 
> The bijective binary notation doesn't use zeros, only 1s and 2s.
> 
> 
> 
> > In other words, binary is much more robust; greater than binary is
> 
> > fragile or has to use more transistors to do the job.
> 
> 
> 
> Setun seemed to manage ternary just fine ;)
> 
> 
> 
> I guess one of the reason why the bijective notation isn't used for
> 
> digital calculations is that there is no obvious way to represent the
> 
> value 0 with on-off states.
> 
> 
> 
> - stefan

The chosen symbols is just a technicality, of course it would be encoded 2211 would be encoded 1100 or´-> 0011 it is the encoding / decoding circuit that makes the difference.

Back to comp.lang.javascript | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-21 13:26 -0700
  Re: Arithmetic compression. JJ <jj4public@vfemail.net> - 2014-07-22 05:01 +0700
    Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-21 15:44 -0700
      Re: Arithmetic compression. "J. Clarke" <jclarkeusenet@cox.net> - 2014-07-22 07:27 -0400
        Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-22 04:53 -0700
    Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-21 16:20 -0700
    Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-21 16:22 -0700
      Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-21 23:17 -0700
  Re: Arithmetic compression. John Harris <niam@jghnorth.org.uk.invalid> - 2014-07-22 09:07 +0100
    Re: Arithmetic compression. Stefan Weiss <krewecherl@gmail.com> - 2014-07-22 11:58 +0200
      Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-22 05:12 -0700
    Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-22 04:49 -0700
      Re: Arithmetic compression. John Harris <niam@jghnorth.org.uk.invalid> - 2014-07-22 15:53 +0100
        Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-22 08:17 -0700
          Re: Arithmetic compression. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-07-22 17:00 +0100
  Re: Arithmetic compression. Scott Sauyet <scott.sauyet@gmail.com> - 2014-07-22 08:08 -0700
    Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-22 08:29 -0700
      Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-22 08:48 -0700
      Re: Arithmetic compression. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-07-22 17:07 +0100
        Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-22 09:17 -0700
          Re: Arithmetic compression. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-07-22 17:24 +0100
            Re: Arithmetic compression. Stefan Weiss <krewecherl@gmail.com> - 2014-07-22 22:12 +0200
              Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-22 16:24 -0700
              Re: Arithmetic compression. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-07-23 00:39 +0100
        Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-22 09:25 -0700
          Re: Arithmetic compression. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-07-22 17:30 +0100
            Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-22 10:45 -0700
            Re: Arithmetic compression. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-07-23 02:08 +0200
              Re: Arithmetic compression. Scott Sauyet <scott.sauyet@gmail.com> - 2014-07-22 17:20 -0700
                Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-22 18:19 -0700
      Re: Arithmetic compression. Scott Sauyet <scott.sauyet@gmail.com> - 2014-07-22 11:11 -0700
        Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-22 11:56 -0700
        Re: Arithmetic compression. John Harris <niam@jghnorth.org.uk.invalid> - 2014-07-23 16:15 +0100
      Re: Arithmetic compression. Tim Streater <timstreater@greenbee.net> - 2014-07-22 19:14 +0100
        Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-22 11:57 -0700
          Re: Arithmetic compression. Tim Streater <timstreater@greenbee.net> - 2014-07-22 21:32 +0100
            Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-22 16:27 -0700
            Re: Arithmetic compression. jonas.thornvall@gmail.com - 2014-07-22 16:29 -0700
  Re: Arithmetic compression. Dave Brown <0ntariokingston@gmail.com> - 2015-05-07 05:32 -0700

csiph-web