Comments on: Ulam’s Prime Number Spiral http://dmitrybrant.com/2007/01/05/primespiral Not responsible for any minds blown. Fri, 30 Jul 2010 03:57:40 +0000 hourly 1 http://wordpress.org/?v=3.0 By: Bill McEachen http://dmitrybrant.com/2007/01/05/primespiral/comment-page-1#comment-18973 Bill McEachen Fri, 30 Jul 2010 03:57:40 +0000 http://dmitrybrant.com/2007/01/05/ulams-prime-number-spiral/#comment-18973 I know an amateur named Hank Harrell has worked with such prime-generating quadratics. You may wish to run some of his best eq'ns thru your spiral graphics. The website link I have does not work but he had a self-published book as follows: ISBN 075967180X Prime Producing Equations. It's dated (he uses ubasic) but the best polynomials are discussed. I know an amateur named Hank Harrell has worked with such prime-generating quadratics. You may wish to run some of his best eq’ns thru your spiral graphics. The website link I have does not work but he had a self-published book as follows: ISBN 075967180X Prime Producing Equations. It’s dated (he uses ubasic) but the best polynomials are discussed.

]]> By: sparge http://dmitrybrant.com/2007/01/05/primespiral/comment-page-1#comment-18010 sparge Mon, 22 Feb 2010 22:05:06 +0000 http://dmitrybrant.com/2007/01/05/ulams-prime-number-spiral/#comment-18010 @thomas; I'm one of those best English (c.f english) speakers. I'm curious to know wherein you think the mistake lies (unless it's a nitpick about the difference between "there is an infinite number of ..." and "there is no largest ..." or "... are countably infinite"). You appear to have missed the intentional irony in the title of the page about Americans (c.f. americans), though. Are you by any chance American? :-) @thomas; I’m one of those best English (c.f english) speakers. I’m curious to know wherein you think the mistake lies (unless it’s a nitpick about the difference between “there is an infinite number of …” and “there is no largest …” or “… are countably infinite”). You appear to have missed the intentional irony in the title of the page about Americans (c.f. americans), though. Are you by any chance American? :-)

]]> By: thomas http://dmitrybrant.com/2007/01/05/primespiral/comment-page-1#comment-16828 thomas Thu, 19 Nov 2009 02:44:20 +0000 http://dmitrybrant.com/2007/01/05/ulams-prime-number-spiral/#comment-16828 hmm "There is an infinite number of prime numbers", is there? ;) this is a mistake that even the best english speakers seem to make all the time; having said that i know yours is fine, and i thoroughly enjoyed your page about things americans say "wrong"! anyway sorry about that, i'll continue reading this article (and the rest of your excellent site) now :) hmm “There is an infinite number of prime numbers”, is there? ;) this is a mistake that even the best english speakers seem to make all the time; having said that i know yours is fine, and i thoroughly enjoyed your page about things americans say “wrong”!

anyway sorry about that, i’ll continue reading this article (and the rest of your excellent site) now :)

]]> By: mike tech http://dmitrybrant.com/2007/01/05/primespiral/comment-page-1#comment-13776 mike tech Thu, 26 Mar 2009 14:31:50 +0000 http://dmitrybrant.com/2007/01/05/ulams-prime-number-spiral/#comment-13776 Wrote [ updated ] program in turbo pascal to "generate" prime numbers, original program by Eratosthenes ~300 bc. not really algebraic, uses "casting out primes" method. Wrote [ updated ] program in turbo pascal to “generate” prime numbers,
original program by Eratosthenes ~300 bc.
not really algebraic, uses “casting out primes” method.

]]> By: KSR http://dmitrybrant.com/2007/01/05/primespiral/comment-page-1#comment-12399 KSR Sat, 12 Jul 2008 19:26:19 +0000 http://dmitrybrant.com/2007/01/05/ulams-prime-number-spiral/#comment-12399 Dear Sir, I am performing some related studies which include to soem extent the prime numebrs. i would very much like to learn from you if you please about the prime numbers. this would help me a lot in my studies. theank you very much indeed sir. Dear Sir,
I am performing some related studies which include to soem extent the prime numebrs. i would very much like to learn from you if you please about the prime numbers. this would help me a lot in my studies. theank you very much indeed sir.

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