
Re: Simple random number generator?
Posted:
Nov 30, 2012 3:25 PM


In sci.math message <50b6cabe$0$24749$607ed4bc@cv.net>, Wed, 28 Nov 2012 21:38:34, Existential Angst <fitcat@optonline.net> posted:
> >So are the digits of pi random or not? >
The digits of pi are not random, because, unless the base is changed, they are the same every time and can be defined relatively briefly, even without assuming a definition of pi (which pi may formally lack).
But any arbitrarily chosen subsequence of the digits of pi will, I believe, pass an appropriate proportion of the usual tests for randomness. Note that the full expansion of the digits of pi contains as subsequences of a given length all possible digit strings of that length, some of which will not look random to the untutored eye, such as yours.
A real mathematician could put that more precisely.
 (c) John Stockton, nr London UK. ???@merlyn.demon.co.uk Turnpike v6.05 MIME. Web <URL:http://www.merlyn.demon.co.uk/>  FAQish topics, acronyms, & links. Check boilerplate spelling  error is a public sign of incompetence. Never fully trust an article from a poster who gives no full real name.

