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 Showing results 1 to 25 of 1000 Search took 0.29 seconds. Search: Posts Made By: Nick
 Forum: chalsall 2022-06-02, 20:51 Replies: 46 Views: 3,106 Posted By Nick For anyone still on Ubuntu with gnome,... For anyone still on Ubuntu with gnome, Ctrl-Alt-F3 apparently still gets you a text console.
 Forum: Lounge 2022-06-02, 20:45 Replies: 15 Views: 583 Posted By Nick Is it the cowboy bowline... Is it the cowboy bowline (https://en.wikipedia.org/wiki/Cowboy_bowline)?
 Forum: Lounge 2022-05-31, 08:04 Replies: 15 Views: 583 Posted By Nick Is the round turn with 2 half hitches really a... Is the round turn with 2 half hitches really a round turn with a granny knot?
 Forum: Lounge 2022-05-31, 08:03 Replies: 15 Views: 583 Posted By Nick Knots, theory and practice The mathematical theory of knots is fun. So are many practical applications: sailing, climbing, surgery, ... Welcome to the knot thread!
 2022-02-21, 09:31 Replies: 69 Views: 31,828 Posted By Nick Sic frangit crisculum? Sic frangit crisculum?
 Forum: Lounge 2021-12-07, 08:40 Replies: 1,936 Views: 227,108 Posted By Nick An important one - thanks! An important one - thanks!
 Forum: Miscellaneous Math 2021-12-07, 08:24 Replies: 52 Views: 4,524 Posted By Nick Thanks (for anyone else interested, the correct... Thanks (for anyone else interested, the correct link is: https://lonati.di.unimi.it/lavori/sicomp.pdf ).
 Forum: Miscellaneous Math 2021-12-06, 23:05 Replies: 52 Views: 4,524 Posted By Nick The context free languages are precisely those... The context free languages are precisely those for which there exists a non-deterministic pushdown automaton.
 Forum: Homework Help 2021-11-20, 11:42 Replies: 29 Views: 8,638 Posted By Nick The square of every odd number is congruent to 1... The square of every odd number is congruent to 1 (mod 8).
 Forum: Math 2021-11-16, 09:17 Replies: 60 Views: 8,421 Posted By Nick https://www.routledge.com/Algebraic-Number-Theory-... https://www.routledge.com/Algebraic-Number-Theory-and-Fermats-Last-Theorem/Stewart-Tall/p/book/9780367658717
 2021-11-09, 14:21 Replies: 26 Views: 14,471 Posted By Nick Why Flemish people adapt their Dutch to Dutch... Why Flemish people adapt their Dutch to Dutch people and not other way around...
 Forum: Lounge 2021-11-08, 21:22 Replies: 42 Views: 3,615 Posted By Nick You said we could ask you for it 11 years ago,... You said we could ask you for it 11 years ago, but that was in the "What is offensive language?" thread, so nobody dared... https://www.mersenneforum.org/showpost.php?p=241676&postcount=130
 2021-11-04, 23:11 Replies: 18 Views: 8,414 Posted By Nick This is not my area (as you know!) but I would... This is not my area (as you know!) but I would say broadly speaking that you have 2 paths forward: either a mathematical proof that your method performs better or, alternatively, using formal...
 Forum: Astronomy 2021-10-31, 18:27 Replies: 18 Views: 2,138 Posted By Nick You'll get a much better answer shortly from... You'll get a much better answer shortly from xilman, but in the mean time it may be worth reading this (https://skyandtelescope.org/astronomy-equipment/how-to-choose-a-telescope/)
 Forum: Puzzles 2021-10-29, 21:06 Replies: 4 Views: 1,317 Posted By Nick It's a pity they didn't mention the continued... It's a pity they didn't mention the continued fraction for e (http://oeis.org/A003417)
 2021-10-24, 08:05 Replies: 26 Views: 14,471 Posted By Nick Certainly an interesting link! If you have... Certainly an interesting link! If you have university access to online journals, the Daniel Levin article is also worth reading: https://www.jstor.org/stable/10.5325/steinbeckreview.12.2.0190
 2021-10-24, 07:45 Replies: 4 Views: 1,885 Posted By Nick Over any commutative ring R, the 2x2 matrices... Over any commutative ring R, the 2x2 matrices with determinant 1 form a subgroup $$SL_2(R)$$ of the unit group of the ring of all 2x2 matrices. The Pauli matrices have determinant -1, however. ...
 Forum: Software 2021-10-23, 07:25 Replies: 32 Views: 3,526 Posted By Nick You may also like this thread... You may also like this thread (https://www.mersenneforum.org/showthread.php?p=533436)
 Forum: Lounge 2021-10-22, 11:20 Replies: 42 Views: 3,615 Posted By Nick The Amorphophallus decus-silvae in our Hortus... The Amorphophallus decus-silvae in our Hortus Botanicus in Leiden is in bloom! It is thought to be only the 3rd time that this has ever happened in Europe. Dutch press release:...
 Forum: Lounge 2021-10-22, 07:33 Replies: 1,936 Views: 227,108 Posted By Nick Bernard Haitink... Bernard Haitink (https://www.bbc.com/news/entertainment-arts-59002746),the world-famous Dutch conductor.
 Forum: Lounge 2021-10-21, 16:34 Replies: 4,467 Views: 423,180 Posted By Nick Queen Elizabeth cancels engagements on medical... Queen Elizabeth cancels engagements on medical advice ... and Barbados moves swiftly to declard a Republic. https://www.bbc.com/news/uk-58979992 ...
 Forum: Science & Technology 2021-10-20, 08:41 Replies: 522 Views: 102,775 Posted By Nick Are there still people there who can check on... Are there still people there who can check on your observatory for you? It must be very worrying.
 Forum: Miscellaneous Math 2021-10-18, 14:23 Replies: 26 Views: 2,327 Posted By Nick Yes, a typo - thanks! Yes, a typo - thanks!
 Forum: Miscellaneous Math 2021-10-18, 13:53 Replies: 26 Views: 2,327 Posted By Nick If $$M_p=2^p-1$$ is prime then, for all integers... If $$M_p=2^p-1$$ is prime then, for all integers n not divisible by $$M_p$$, $$n^{2^p-2}\equiv 1\pmod{M_p}$$ by Fermat's little theorem. It is standard to use modulo arithmetic during the...
 Forum: MattcAnderson 2021-10-18, 09:55 Replies: 24 Views: 2,173 Posted By Nick The mathematical background is that you can... The mathematical background is that you can construct the regular polygon with n sides using ruler and compass if and only if ϕ(n) is a power of 2 (where ϕ is Euler's function). And that is true...
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