Bellarden formula

Bellarden formularen bidez π-ren hamaikagarren digitua kalkula daiteke 16 oinarrian.

Bellarden formula Fabrice Bellardek aurkitu zuen 1997an. Balley-Borwein-Plouffuren formula baino %43 azkarragoa da, gutxi gorabehera.[1] PiHex-en erabili da, konputazio banatuko proiektu osatu batean.

Aplikazio garrantzitsu bat da beste bitarteko batzuen bidez aurkitutako π digituen konputazioak egiaztatzea. Digitu guztiak bi aldiz bi algoritmo bereiziz zenbatu beharrean, konputazio bat zuzena dela ziurtatzeko, konputazio oso luze baten azken digituak Bellard-en formularen bidez egiazta daitezke, oso azkarra baita formula hori.[2]

Formula

Erreferentziak

  1. «PiHex Credits» Centre for Experimental and Constructive Mathematics (Simon Fraser University) 21 de marzo de 1999.
  2. Trueb, Peter. (31 October 2016). Hexadecimal Digits are Correct!. .

Kanpo estekak

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