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 Showing results 1 to 16 of 16 Search took 0.01 seconds. Search: Posts Made By: Crook
 Forum: Math 2005-12-07, 19:47 Replies: 1 Views: 1,199 Posted By Crook Why zeta(-2n)=0 ? I know this wouldn't even deserve to be posted, but could someone explain me why zeta(-2n)=0 ? Regards.
 Forum: Software 2005-11-25, 13:12 Replies: 11 Views: 1,482 Posted By Crook I need to verify, for instance, if (17^64-1)/24... I need to verify, for instance, if (17^64-1)/24 is an integer. Just an example. Does GMP provide me this feature?
 Forum: Software 2005-11-23, 11:24 Replies: 11 Views: 1,482 Posted By Crook Need to verify if big numbers are integers I need to see if big numbers, for instance greater than 10^12, are integers? VB6, C++ and the others don't offer this possibility. Could you indicate me some useful programs? Thanks.
 Forum: Math 2005-11-16, 15:42 Replies: 5 Views: 974 Posted By Crook I thought the question was clear enough. I'm... I thought the question was clear enough. I'm asking some general informations about the relation between these 2 functions. For instance, sigma(n)/d(n). I'd be interested in both the average order...
 Forum: Math 2005-11-16, 15:34 Replies: 5 Views: 974 Posted By Crook And what is the relation between these 2... And what is the relation between these 2 functions?
 Forum: Math 2005-11-16, 15:28 Replies: 5 Views: 974 Posted By Crook Relation between divisor functions Does anybody know anything about the relation between sigma(n) and d(n) and about sigma(n)/d(n)?
 Forum: Math 2005-10-26, 13:32 Replies: 3 Views: 867 Posted By Crook P(n+1)<(sqrt(P(n))+1)^2 Let P(n) denote the n-th prime number. Then, does anybody have an idea why P(n+1)<(sqrt(P(n))+1)^2 is true? This would be a lower bound than the Tchebycheff result that there is always a prime...
 Forum: Puzzles 2005-02-18, 17:33 Replies: 60 Views: 4,721 Posted By Crook I have a solution of the problem. If someone is... I have a solution of the problem. If someone is interested I can post it.
 Forum: Math 2005-01-14, 15:38 Replies: 5 Views: 1,241 Posted By Crook In my humble opinion I think this would be wasted... In my humble opinion I think this would be wasted time.. OPN just don't exist. Or at least I think/hope so. greetings
 Forum: Math 2005-01-12, 15:33 Replies: 5 Views: 2,201 Posted By Crook Fermat's Theorem We all know fermat's theorem that states: if p is a prime and (p,a)=1 then p divides a^(p-1)-1. I noticed that p divides also: a^k(p-1)-1. Is this a well known characteristic? Second question:...
 Forum: Math 2004-12-30, 15:50 Replies: 10 Views: 865 Posted By Crook I found what I was looking for. Indeed, google... I found what I was looking for. Indeed, google helped me. Chebyshev proved it in the XIXth century. Here is the link of the proof for whom is interested: http://matholymp.com/TUTORIALS/Bertrand.pdf ...
 2004-12-30, 15:43 Replies: 17 Views: 4,935 Posted By Crook Godel-Escher-Bach, Douglas Hofstadter A... Godel-Escher-Bach, Douglas Hofstadter A Mathematician Apology, G.H. Hardy
 Forum: Math 2004-12-30, 15:19 Replies: 10 Views: 865 Posted By Crook If there is a proof, could you tell me who proved... If there is a proof, could you tell me who proved it, and where i can find at least an outline of it? thanks
 Forum: Math 2004-12-30, 15:10 Replies: 1 Views: 2,146 Posted By Crook I was wondering the same thing as TravisT. I'm... I was wondering the same thing as TravisT. I'm definetly interested in the proofs of all these theorems. Putting one together is a good idea..
 Forum: Math 2004-12-30, 14:56 Replies: 10 Views: 865 Posted By Crook So,from what I understood, there is no proof that... So,from what I understood, there is no proof that for any integer n, there is a prime p, such as n
 Forum: Math 2004-12-29, 14:17 Replies: 10 Views: 865 Posted By Crook n
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