Re: x === x

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From	Dr J R Stockton <reply1700@merlyn.demon.co.uk.invalid>
Newsgroups	comp.lang.javascript
Subject	Re: x === x
Date	Fri, 2 Jun 2017 21:15:00 +0100
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In comp.lang.javascript message <1917432.Icojqenx9y@PointedEars.de>,
Thu, 1 Jun 2017 05:01:42, Thomas 'PointedEars' Lahn <PointedEars@web.de>
posted:

>One thing is clear, though: patterns are the opposite of randomness.

No.  All possible output sequences must be equi-probable; and a random
fifteen-digit generator must be just as likely to generate
238462643383279 as to generate 141592653589793 or 111112222233333.

A PRNG is cannot be deemed faulty because it produces any such sequence
- only if it does so too often or not often enough.

The string 3477151372431 may look random; but it is actually 1e12 to
base 9.  It pseudo-unexpectedly contains no instances of 0 6 8 - and as
expected it contains no 9.

As I recall, all finite decimal digit sequences occur infinitely often
in the exact decimal value of Pi.

-- 
 (c) John Stockton, Surrey, UK.  ¬@merlyn.demon.co.uk   Turnpike v6.05   MIME.
 Merlyn Web Site <                       > - FAQish topics, acronyms, & links.

Thread

Re: x === x Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-05-30 16:21 +0200
  Re: x === x John G Harris <niam@jghnorth.org.uk.invalid> - 2017-05-30 19:16 +0100
  Re: x === x Dr J R Stockton <J.R.Stockton@physics.org> - 2017-05-31 08:39 -0700
    Re: x === x Stefan Weiss <krewecherl@gmail.com> - 2017-05-31 18:08 +0200
      Re: x === x Dr J R Stockton <reply1700@merlyn.demon.co.uk.invalid> - 2017-06-02 22:27 +0100
    Re: x === x Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-05-31 21:03 +0200
      Re: x === x Dr J R Stockton <reply1700@merlyn.demon.co.uk.invalid> - 2017-06-02 22:12 +0100
    Re: x === x Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-05-31 21:09 +0200
      Re: x === x Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-06-01 01:58 +0100
        Re: x === x Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-06-01 05:01 +0200
          Re: x === x Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-06-01 14:44 +0100
          Re: x === x Dr J R Stockton <reply1700@merlyn.demon.co.uk.invalid> - 2017-06-02 21:15 +0100
        Re: x === x Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-06-01 14:17 +0100
    Re: x === x Julio Di Egidio <julio@diegidio.name> - 2017-06-01 00:10 -0700
      Re: x === x Dr J R Stockton <reply1700@merlyn.demon.co.uk.invalid> - 2017-06-02 22:16 +0100

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