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oktober 08, 2004
Mer om myntsingling
I Diaconis om myntsingling skrevs om en undersökning som Persi Diaconis, Susan Holmes och Richard Montgomery gjort kring myntsingling.
Nyss stötte jag på deras paper om detta: Dynamical Bias in the Coin Toss (PDF)
Abstract:
We analyze the natural process of flipping a coin which is caught in the hand. We prove that vigorously-flipped coins are biased to come up the same way they started. The amount of bias depends on a single parameter, the angle between the normal to the coin and the angular momentum vector. Measurements of this parameter based
on high-speed photography are reported. For natural flips, the chance of coming up as started is about .51.
Det visas också några fina bilder på mojängen som användes.
Posted by hakank at oktober 8, 2004 11:58 EM Posted to Matematik