https://pinboard.in/u:keithpeter/public/ recent bookmarks from keithpeter 2021-08-09T20:52:18+00:00 https://www.quantamagazine.org/mathematician-terence-tao-and-the-collatz-conjecture-20191211/ keithpeter notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:ba1f3243d917/ 2021-07-16T14:42:26+00:00 https://jaydaigle.net/blog/what-is-the-axiom-of-choice/ keithpeter notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:7ab159437504/ 2021-04-01T10:29:25+00:00 https://github.com/oliverphilcox/Keplers-Goat-Herd keithpeter notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:180ea39a7bba/ 2021-03-30T10:11:23+00:00 https://medium.com/the-wisest-friends/a-single-equation-that-rules-the-world-7673d4e5c359 keithpeter notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:2ffa217e7b52/ 2021-03-13T21:48:06+00:00 https://www.nytimes.com/2021/03/06/science/math-gresham-sarah-hart.html keithpeter> "As she explained in her Gresham application, a key motivator of her interest in that position and, about 15 years earlier, in joining the faculty of Birkbeck — a college offering working Londoners evening courses — was that “at the heart of both organizations is something to which I am deeply committed: giving people from all backgrounds access to education and learning." <<]]> notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:75e004a93398/ 2020-12-11T11:28:38+00:00 https://www.quantamagazine.org/the-busy-beaver-game-illuminates-the-fundamental-limits-of-math-20201210/ keithpeter> "That’s because BB(27) corresponds to the maximum number of steps this 27-rule Turing machine would have to execute in order to halt (if it ever did). If we knew that number, we could run the Turing machine for exactly that many steps. If it halted by that point, we’d know the Goldbach conjecture was false. But if it went that many steps and didn’t halt, we’d know for certain that it never would — thus proving the conjecture true." << BB(27) is incomprehensibly huge of course and completely unknown.]]> notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:c4d9b8d29fe6/ 2020-12-03T09:10:02+00:00 https://blogs.scientificamerican.com/roots-of-unity/10-secret-trig-functions-your-math-teachers-never-taught-you/ keithpeter> "...the haversine may have been more important in more recent history, when it was used in navigation. The haversine formula is a very accurate way of computing distances between two points on the surface of a sphere using the latitude and longitude of the two points. The haversine formula is a re-formulation of the spherical law of cosines, but the formulation in terms of haversines is more useful for small angles and distances." << Via HN. All about minimising the arithmetic in the days of log tables.]]> notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:8a166efecf81/ 2019-07-07T19:18:13+00:00 https://inconvergent.net/generative/ keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:c619b955e74c/ 2019-06-28T16:07:54+00:00 https://www.movable-type.co.uk/scripts/latlong.html keithpeter notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:3849c370144d/ 2019-02-08T17:25:01+00:00 http://nautil.us/issue/16/Nothingness/traffic-ghost-hunting-2 keithpeter notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:bfcc40e243d1/ 2019-02-07T10:09:10+00:00 https://www.quantamagazine.org/the-sum-product-problem-shows-how-addition-and-multiplication-constrain-each-other-20190206/ keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:99cce9484e5f/ 2019-02-03T16:23:01+00:00 https://www.johndcook.com/blog/2019/02/02/landau-kolmogorov/ keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:e72919eb9162/ 2019-01-27T21:30:10+00:00 https://www.youtube.com/watch?v=8zVrqfTsgss keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:ec0854b6c93e/ 2019-01-27T21:29:27+00:00 https://www.youtube.com/watch?v=vqHEFqKU5gQ keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:32241f36c066/ 2019-01-27T21:28:10+00:00 https://www.youtube.com/watch?v=qRgf_6CUHZI keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:ccfebad3781c/ 2019-01-11T17:16:05+00:00 https://www.quantamagazine.org/mathematicians-seal-back-door-to-breaking-rsa-encryption-20181217/ keithpeter notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:68e82fff3a76/ 2018-06-15T10:55:34+00:00 http://www.miamiherald.com/news/local/community/miami-dade/article212571434.html keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:007ce35b8e83/ 2018-03-24T12:14:52+00:00 http://culture.pl/en/article/maths-madness-and-the-manhattan-project-the-eccentric-lives-of-steinhaus-banach-and-ulam keithpeter notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:06c93595ae10/ 2018-03-17T16:20:03+00:00 https://www.missbsresources.com/teaching-and-learning/revision keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:65de8d0c17d3/ 2018-03-05T11:15:58+00:00 https://www.newyorker.com/tech/elements/einsteins-first-proof-pythagorean-theorem keithpeter notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:9365c370de5d/ 2017-08-27T16:13:13+00:00 https://www.racked.com/2017/5/2/15518540/met-gala-gown-design-science-technology-engineering keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:2db895495647/ 2017-08-24T10:31:23+00:00 http://www.bbc.co.uk/news/education-41023354 keithpeter notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:328af44b8c05/ 2017-07-08T08:48:42+00:00 https://www.quantamagazine.org/how-nature-solves-problems-through-computation-20170706/ keithpeter> "Like flocking or schooling, the policing behavior arises from individual interactions to produce a macroscopic effect on the entire ensemble. But it is subtler, perhaps harder to visualize and measure. Or, as Flack says of macaque society and many of the other systems she studies, “their metric space is a social coordinate space. It’s not Euclidean.”" <<]]> maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:d74ab35db0e6/ 2017-01-01T12:56:10+00:00 http://weijr-note.blogspot.co.uk/2017/01/2017-is-not-just-another-prime-number.html keithpeter notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:095b893ee636/ 2016-09-30T19:02:23+00:00 http://nautil.us/blog/an-infinitely-rich-mathematician-turns-100 keithpeter> “Give me a problem,” he said, “and I’ll unsolve it.” <<]]> maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:bff07e5685f9/ 2016-08-26T19:25:00+00:00 https://www.edge.org/conversation/geoffrey_west-why-cities-keep-growing-corporations-and-people-always-die-and-life-gets keithpeter Maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:df19837e9957/ 2016-08-13T11:29:36+00:00 http://math.ucr.edu/home/baez/roots/ keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:67c71f010b5c/ 2016-05-15T08:06:06+00:00 http://www.gma.org/surfing/imaging/globe.html keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:cbae1fad3a34/ 2016-05-03T19:49:26+00:00 https://backchannel.com/who-was-ramanujan-83b4d5b05665#.tmk9r5mm4 keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:890964d86e17/ 2016-03-15T12:39:18+00:00 http://www.nature.com/news/the-biggest-mystery-in-mathematics-shinichi-mochizuki-and-the-impenetrable-proof-1.18509 keithpeter>In his latest verification report, Mochizuki wrote that the status of his theory with respect to arithmetic geometry “constitutes a sort of faithful miniature model of the status of pure mathematics in human society”. The trouble that he faces in communicating his abstract work to his own discipline mirrors the challenge that mathematicians as a whole often face in communicating their craft to the wider world.<< Shinichi Mochizuki seems like a really together chap. Not another Perelman by any means.]]> maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:bcc0520c6193/ 2016-03-15T11:50:36+00:00 https://www.quantamagazine.org/20160313-mathematicians-discover-prime-conspiracy/ keithpeter maths statistics https://pinboard.in/ https://pinboard.in/u:keithpeter/b:822960551412/ 2016-01-03T20:08:04+00:00 http://anna.vc/post/112863438962/how-to-think-using-visual-analogies keithpeter Maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:576eae2c53c7/ 2015-08-23T08:21:30+00:00 http://nautil.us/issue/16/nothingness/why-we-cant-rule-out-bigfoot keithpeter maths data https://pinboard.in/ https://pinboard.in/u:keithpeter/b:7f70ac82de77/ 2015-08-23T08:16:02+00:00 http://nautil.us/issue/19/illusions/five-ways-to-lie-with-charts keithpeter maths data https://pinboard.in/ https://pinboard.in/u:keithpeter/b:14d8677e82fb/ 2015-07-15T09:14:15+00:00 https://www.youtube.com/watch?v=PfPcn3SohrI keithpeter Visual -> Abstract]]> maths learning https://pinboard.in/ https://pinboard.in/u:keithpeter/b:eaa7532a2bff/ 2015-07-15T09:13:21+00:00 http://www.mathplayground.com/ThinkingBlocks/thinking_blocks_modeling%20_tool.html keithpeter maths learning https://pinboard.in/ https://pinboard.in/u:keithpeter/b:9ed4ea5406e1/ 2014-04-07T05:41:49+00:00 http://math.stackexchange.com/questions/733754/visually-stunning-math-concepts-which-are-easy-to-explain keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:a86dead55705/ 2014-04-03T16:22:24+00:00 http://www.askamathematician.com/2010/12/q-what-does-00-zero-raised-to-the-zeroth-power-equal-why-do-mathematicians-and-high-school-teachers-disagree/ keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:dae43a2dcd98/ 2014-04-03T16:16:50+00:00 https://gist.github.com/lelandbatey/8677901 keithpeter maths learning https://pinboard.in/ https://pinboard.in/u:keithpeter/b:d307e8ffd597/ 2014-02-27T15:01:00+00:00 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2013-10-25T14:42:19+00:00 https://news.ycombinator.com/item?id=6609586 keithpeter notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:11c3c85f71a1/ 2013-10-25T14:40:15+00:00 http://jvns.ca/blog/2013/10/24/day-16-gzip-plus-poetry-equals-awesome/ keithpeter notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:d4e88ff02ca5/ 2013-10-13T09:07:22+00:00 http://www.johndcook.com/blog/2013/10/12/prime-generating-fractions/ keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:b223720ef467/ 2013-10-06T08:50:14+00:00 http://www.uh.edu/engines/epi504.htm keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:12205ffc2cc1/ 2013-09-26T11:20:59+00:00 http://www.tech.plym.ac.uk/maths/resources/PDFLaTeX/mathaid1.html keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:59fbdf16d76d/ 2013-09-14T21:11:15+00:00 https://en.wikipedia.org/wiki/Two_envelope_problem keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:423e8acfa315/ 2013-09-06T19:04:07+00:00 http://www.bbc.co.uk/news/magazine-23986212 keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:9251349e71d1/ 2013-08-27T22:02:08+00:00 http://drillchina.wordpress.com/ keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:48f65797cfb9/ 2013-08-27T21:59:45+00:00 http://www.theregister.co.uk/2013/08/27/data_mining_for_the_ppi_scandal/?page=3 keithpeter notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:adf3f4d13cb7/ 2013-08-27T20:51:43+00:00 http://college-basketball.si.com/2013/08/26/verbatim-jeff-sagarin/?sct=uk_wr_a1 keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:313fc974ef16/ 2013-08-27T14:22:51+00:00 http://profkeithdevlin.org/2011/11/20/what-is-algebra/ keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:44059571a92e/ 2013-08-17T20:20:21+00:00 http://normaldeviate.wordpress.com/ keithpeter maths statistics https://pinboard.in/ https://pinboard.in/u:keithpeter/b:d0f06c1ba7de/ 2013-08-02T08:22:11+00:00 http://www.niemanlab.org/2013/07/how-to-turn-everyone-in-your-newsroom-into-a-graphics-editor/ keithpeter maths statistics https://pinboard.in/ https://pinboard.in/u:keithpeter/b:c0a14e4e5205/ 2013-08-02T08:20:20+00:00 https://github.com/Quartz/Chartbuilder/ keithpeter maths statistics https://pinboard.in/ https://pinboard.in/u:keithpeter/b:347821541b87/ 2013-07-31T20:04:24+00:00 http://yudkowsky.net/rational/bayes keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:add755f6d669/ 2013-07-28T18:27:37+00:00 http://www.cyclismo.org/tutorial/R/index.html keithpeter Maths R statistics https://pinboard.in/ https://pinboard.in/u:keithpeter/b:eeae547b2996/ 2013-07-27T07:38:49+00:00 http://www.ft.com/cms/s/2/dda1cb5c-f4c0-11e2-a62e-00144feabdc0.html#axzz2aBj9w7FJ keithpeter maths statistics https://pinboard.in/ https://pinboard.in/u:keithpeter/b:e9b5de61b64a/ 2013-07-26T15:39:36+00:00 http://www.bbc.co.uk/news/education-23463912 keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:0f6a4e2156e2/ 2013-07-26T06:03:25+00:00 http://johncarlosbaez.wordpress.com/2013/07/19/negative-probabilities/ keithpeter maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:fb9a233b8f4a/ 2013-07-26T06:01:51+00:00 http://johncarlosbaez.wordpress.com/ keithpeter notes maths https://pinboard.in/ https://pinboard.in/u:keithpeter/b:cf1be8630ff7/