Sujet : Re: Repeated digits in Pi -- the Feynman point
De : rjh (at) *nospam* cpax.org.uk (Richard Heathfield)
Groupes : rec.puzzlesDate : 24. Jun 2025, 16:01:14
Autres entêtes
Organisation : Fix this later
Message-ID : <103eejr$22r75$1@dont-email.me>
References : 1 2 3 4
User-Agent : Mozilla Thunderbird
On 24/06/2025 10:04, Richard Tobin wrote:
In article <1f87e271f28067836cabd2199a7ea473@www.novabbs.com>,
HenHanna <HenHanna@dev.null> wrote:
Really? i thought Pi was random.
What would it mean for a number to be random?
Precisely. Surely it depends at least partly on who's doing the asking?
I invented a rather fun way of determining how random pi is.
Using the digits of pi as a PRNG, I tossed a load of virtual needles at a virtual zebra crossing (pseudo-random X for one endpoint, pseudorandom angle in radians) a la Buffon's needle. Using p = 2l/tπ and therefore π = 2l/pt, I calculated that π is about 3, which sounds pretty random to me.
People only say it /isn't/ random because they've seen it before. If you film a kaleidoscope, the pictures are /not/ random because you know exactly which frame comes next.
-- Richard HeathfieldEmail: rjh at cpax dot org dot uk"Usenet is a strange place" - dmr 29 July 1999Sig line 4 vacant - apply within
Repeated digits in Pi -- the Feynman point
Re: Repeated digits in Pi -- the Feynman point
