PICALC.TXT

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     Date: 11-04-95    Time: 04:21p     Number: 550    
     From: The Mathematician             Refer:         
       To: Chris Delanoy              Board ID: FIX             Reply: 
  Subject: Pi                              165: fido.en.scie   Status: Public 
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 -=> Quoting Chris Delanoy to C++ Master All
 CD> Has anybody else heard of the new algorithm, discovered by two
 CD> Canadian mathemeticians, for calculating any single digit of pi...  for
 CD> example, you can use it to calculate the 18 billionth digit without
 CD> bothering to calculate the 17,999,999,999 digits preceeding it.

 CD> For those not knowing of it, here it is as published in the Oct 18/95
 CD> Globe and Mail:

 CD> infinity
 CD> pi = (sigma)  16(-n) * ( 4   -  2   -  1   -  1  )
 CD> n = 0             (----   ----   ----   ----)
 CD> (8n+1   8n+4   8n+5   8n+6)

That is ammazing!
I am sure it will be very valuable.



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