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 Showing results 1 to 25 of 1000 Search took 0.30 seconds. Search: Posts Made By: Nick
 2021-07-26, 08:29 Replies: 25 Views: 12,270 Posted By Nick For anyone looking for a fun bit of summer... For anyone looking for a fun bit of summer reading: The discrete yet ubiquitous theorems of Carathéodory, Helly, Sperner, Tucker, and Tverberg...
 Forum: Hobbies 2021-07-25, 08:16 Replies: 22 Views: 426 Posted By Nick I once came across a Calculus textbook marked... I once came across a Calculus textbook marked "Copyright year N" on sale in May of year N-1. I wondered if students could simply copy it for the next 7 months.
 Forum: LaurV 2021-07-22, 17:20 Replies: 10 Views: 394 Posted By Nick The first version was made while they were still... The first version was made while they were still at Stanford and the algorithm is therefore public. Then they turned it into an American corporation...
 Forum: Soap Box 2021-07-21, 20:09 Replies: 396 Views: 51,750 Posted By Nick It could just be a coincidence (there will be... It could just be a coincidence (there will be lots of times whten this didn't happen - you don't tend to notice those). If you are genuinely worried, I would suggest monitoring things like your...
 2021-07-10, 08:19 Replies: 9 Views: 596 Posted By Nick We have $$2ax+b-y\equiv 0\pmod{4an}$$ and... We have $$2ax+b-y\equiv 0\pmod{4an}$$ and $$\gcd(2a,4an)=2a\neq 1$$. If 2a does not divide b-y then there is no solution. If instead b-y=2at for some integer t then $$x\equiv -t\pmod{2n}$$.
 2021-07-08, 21:57 Replies: 9 Views: 596 Posted By Nick Yes (assuming you mean discr=(b*)²-4a*c* mod p). ... Yes (assuming you mean discr=(b*)²-4a*c* mod p). That is what we mean by Propostion 22 here (https://www.mersenneforum.org/showthread.php?t=21677)
 2021-07-07, 09:20 Replies: 9 Views: 596 Posted By Nick See section 2.3.2 in the 2nd edition of the book... See section 2.3.2 in the 2nd edition of the book by Crandall and Pomerance: "Prime Numbers , a computational perspective" (https://www.springer.com/gp/book/9780387252827)
 2021-07-06, 06:49 Replies: 9 Views: 596 Posted By Nick Yes, in this subforum already! ... Yes, in this subforum already! https://www.mersenneforum.org/showthread.php?t=22058
 Forum: Lounge 2021-07-02, 18:17 Replies: 1,011 Views: 92,631 Posted By Nick Great! The easy one to forget (for people from... Great! The easy one to forget (for people from the UK) is health insurance, but I assume you have that sorted too.
 2021-06-23, 21:13 Replies: 11 Views: 1,493 Posted By Nick That's called a confetto! That's called a confetto!
 Forum: Lounge 2021-06-18, 16:17 Replies: 95 Poll: GIMPS shirts Views: 25,281 Posted By Nick "Taximeter cabriolet", which we shorten to "taxi"... "Taximeter cabriolet", which we shorten to "taxi" and you shorten to "cab".
 2021-06-12, 11:57 Replies: 17 Views: 6,813 Posted By Nick Silbo Gomero... Silbo Gomero (https://en.wikipedia.org/wiki/Silbo_Gomero) is a whistled language used in the Canary Islands (specifically on La Gomera) to communicate over long distances across deep valleys or...
 Forum: Lounge 2021-06-11, 18:01 Replies: 13 Views: 496 Posted By Nick If I remember rightly, the format was simple... If I remember rightly, the format was simple enough to reverse engineer with ease up to dBase III, but got somewhat messier after that. The index files were separate, however, so using a hexdump...
 Forum: Soap Box 2021-06-11, 08:13 Replies: 81 Views: 11,743 Posted By Nick Lake Mead: Largest US reservoir dips to record... Lake Mead: Largest US reservoir dips to record low https://www.bbc.com/news/world-us-canada-57436860
 Forum: Astronomy 2021-06-11, 08:11 Replies: 42 Views: 3,828 Posted By Nick A great shot! A great shot!
 Forum: Astronomy 2021-06-10, 10:33 Replies: 42 Views: 3,828 Posted By Nick We just viewed the partial eclipse here (with... We just viewed the partial eclipse here (with Eclipse glasses), only about 17% covered but still impressive!
 Forum: Miscellaneous Math 2021-06-03, 08:37 Replies: 30 Views: 1,237 Posted By Nick The mathematics behind this is explained here.... The mathematics behind this is explained here. (https://www.mersenneforum.org/showthread.php?t=21717)
 Forum: Soap Box 2021-05-30, 16:45 Replies: 396 Views: 51,750 Posted By Nick It might fall foul of Lawful Interception... It might fall foul of Lawful Interception regulations.
 Forum: Soap Box 2021-05-28, 22:16 Replies: 35 Views: 3,794 Posted By Nick Coincidence: I was just reading about a John... Coincidence: I was just reading about a John Deere baler in a novel by Tom Spanbauer!
 Forum: Lounge 2021-05-28, 11:58 Replies: 1,758 Views: 171,598 Posted By Nick Kees de Jager... Kees de Jager (https://en.wikipedia.org/wiki/Kees_de_Jager) Dutch astronomer
 Forum: Tales From the Crypt(o) 2021-05-25, 16:23 Replies: 283 Views: 85,204 Posted By Nick European Court of Human Rights rules against UK... European Court of Human Rights rules against UK mass surveillance. Article:...
 2021-05-25, 12:21 Replies: 25 Views: 12,270 Posted By Nick Thanks to Mike for the following tip: ... Thanks to Mike for the following tip: https://artofproblemsolving.com/articles/files/SatoNT.pdf Slight caveat on this one: the puzzles are good but the theory is not always completely precise or...
 Forum: Lounge 2021-05-23, 08:59 Replies: 1,107 Views: 91,453 Posted By Nick "Rocket plane flies to edge of space" ... "Rocket plane flies to edge of space" https://www.bbc.com/news/science-environment-57214988 It's a pity they mean the start of space and not the end...
 Forum: Miscellaneous Math 2021-05-23, 08:55 Replies: 33 Views: 1,623 Posted By Nick Mathematicians do it that way because (a^b)^c can... Mathematicians do it that way because (a^b)^c can simply be written as a^(bc) with no need for an extra level!
 Forum: Science & Technology 2021-05-20, 14:49 Replies: 230 Sticky: Poll: COVID vaccination wavefront Views: 16,386 Posted By Nick The Dutch government's invitation letter plays... The Dutch government's invitation letter plays perfectly to our psychology: "We have a vaccine ready for you. You don't have to take it, but it's free!"
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