From: "Christian Bau" Subject: Re: Counting primes, and why I'm pissed Date: Wednesday, February 12, 2003 23:23 In article <3c65f87.0302121256.10cdd65d@posting.google.com>, jstevh@msn.com (James Harris) wrote: > With even N, 49 < N <121, > > pi(N) = > floor(N/2) - floor((N-4)/6) - floor((N-16)/10) + > floor((N-16)/30) - floor((N-36)/14) + floor((N-22)/42) > > and if you don't believe that mathematicians are cheats, ask *any* > mathematician in the world to produce a shorter function for that > region. pi(N) = N/2 - floor((N-4)/6) - floor((N-16)/10) + floor((N-16)/30) - floor((N-36)/14) + floor((N-22)/42) It is shorter. You are so obsessed with yourself, you post this formula and claim that no mathematician could improve on it, and even an average ten year old could do it. |
|
Gem Index | Original post & context: christian.bau-5DA809.22234212022003@slb-newsm1.svr.pol.co.uk |