Mathblogging.orgRecent Postshttp://mathblogging.org/scripts/feed.php2015-10-09T00:59:41-04:00No copyright asserted over individual posts; see original posts for copyright and/or licensing.Mathblogging.org Atom serializerUsing stereotypes as an advantagehttp://mathblogging.org/post/1307532015-10-08T17:34:09-04:00Nathan YauIn 2004, Annie Duke won the World Series of Poker Tournament of Champions, taking home a prize of $2 million. She was the only woman at the final table and…Tags: poker, stereotype54th Annual Northwest Math Conference: Final Conference Programhttp://mathblogging.org/post/1307502015-10-08T17:00:01-04:00Unknown54th Annual Northwest Math Conference: Final Conference Program: The final conference program for the 54th Annual Northwest Math Conference is now available. Prove 2[sqrt(n) - sqrt(n-1)] > 1/sqrt(n)http://mathblogging.org/post/1307662015-10-08T16:43:35-04:00Unknown2[sqrt(n) - sqrt(n-1)] > 1/sqrt(n). Find as many solutions as you can“Well-defined”( “定义良好”)http://mathblogging.org/post/1307482015-10-08T16:19:04-04:00tomcircleOriginally posted on Math Online Tom Circle:<br />万门大学抽象代数7: “定义良好” (Well-defined) 集合: Set (S) 等价关系: Equivalence Relation (~) 商集 : Quotient Set (S/~) 映射 : Mapping (f) Prove : f is well-defined ?Eschnerhttp://mathblogging.org/post/1307472015-10-08T16:01:00-04:00Vlad AlexeevArtworks by Gerhard
http://im-possible.info/english/art/escher-inspired/gerhard.html
Author - http://www.gerhardart.com/
Ένας εύκολος αλγόριθμος για τον υπολογισμό ψηφίων του π ,μια άσκηση στην ανάπτυξη εφαρμογών και ένα πόστερ με έξι εκατομμύρια ψηφία του πhttp://mathblogging.org/post/1307462015-10-08T15:39:00-04:00Αθανάσιος Δρούγας<br /> <br />"Αν οι εξισώσεις είναι τρένα που διασχίζουν την χώρα των αριθμών,τότε κανένα τους δεν σταματά στο
[…]抽象代数 Abstract Algebrahttp://mathblogging.org/post/1307492015-10-08T15:37:59-04:00tomcircleOriginally posted on Math Online Tom Circle:<br />北京航空航天大学：数学大观 第2讲 数学抽象 无招胜有招” 1. Euclid 5条公理 (Axioms) => 全部 几何 (Geometry) 2. Galois 运算律 (Laws of Operations) => 抽象代数 (Abstract Algebra)Photohttp://mathblogging.org/post/1307452015-10-08T15:02:30-04:00Unknown<br/><br/>Il Grand Hotel di Hilbert: un Aiuto Animato per Comprendere il Concetto di Infinitohttp://mathblogging.org/post/1307422015-10-08T14:48:00-04:00annarita rubertoFonte dell'immagine<br>Qualche anno fa, pubblicavo "Un racconto ispirato al Paradosso del Grand Hotel di Hilbert".<br>Oggi, è la volta di un interessante filmato di TED-Ed "The Infinite Hotel Paradox", incentrato sullo stesso tema.<br><br>Il citato paradosso è un esperimento mentale, ovviamente brillante e senza dubbio suggestivo, creato dal matematico tedesco David Hilbert, il cui soggetto è un albergo con un numero infinito di camere.<br>Potrebbe sembrare facile da capire, forse. Ed
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[…]Up to date with commentshttp://mathblogging.org/post/1307442015-10-08T14:47:01-04:00JohanThose of you who have left comments: OK, I worked through all your comments and I fixed almost all of them. For many of your comments I left a corresponding message on the same webpage as where you left your … Continue reading →The Mpemba Paradoxhttp://mathblogging.org/post/1307432015-10-08T14:38:00-04:00TonyAs a mathematician I love mathematical paradoxes because they are disturbing and thought-provoking. For example, Parrondo's Paradox tells us something counter-intuitive about probabilistic games; Simpson's paradox reminds us that we have to think carefully about statistics; and Curry's paradox is just mind-bending.<br /><br />Paradoxes in the sciences are important because they make us think about our theories and where they don't quite match reality, driving new scientific ideas. My
[…]So you want to be a whistleblower? Part IIIhttp://mathblogging.org/post/1307412015-10-08T14:30:24-04:00Alison McCookThis is the third and final article in a series by John R. Thomas, Jr., a lawyer at Gentry Locke who represents whistleblowers in a variety of False Claims Act cases. His first article discussed the background of the False Claims Act (“FCA”) and how it might apply to scientific misconduct, and his second article […]
The post So you want to be a whistleblower? Part III appeared first on Retraction Watch.MPM2D - Day 22: Trighttp://mathblogging.org/post/1307402015-10-08T13:49:00-04:00Mary BourassaWe started today's class by looking at the trig tables they had created along with my version of it. <br />I asked if we had similar numbers for the ratios and, for the most part, they said we did. I looked at them with a furrowed brow and said "But my triangles were not the same as yours. Why would we have the same ratios?" I was surprised (in a really awesome way) at how quickly someone said that all of our triangles for a particular angle were similar (reflecting on this, I should have given
[…]The Problem 743 + 149 = ??? Addition Poster/Anchor Chart with Cards for Studentshttp://mathblogging.org/post/1307522015-10-08T13:30:15-04:00MathGamesAddition Anchor Chart with Cards for Students A anchor chart to put on your Math Vocabulary board to use as a reference. Along with cards to use as bookmarks for a quick reference. Also included is a 24inch x 36inch (poster size) JPEG file included, so you can […]
Related Math Games:
Fractions! = Poster & Anchor Chart with Cards for Students
How Can I Multiply a Fraction = Poster/Anchor Chart with Cards for Students
Mixed Number = Poster/Anchor Chart with Cards for Students
Efficient scalable compression of sparsely sampled imageshttp://mathblogging.org/post/1307362015-10-08T12:47:00-04:00Igor<br /><br />Laurent Duval just sent me the following:<br />Hi Igor<br />From Québec City, a paper that caught my attention, a nice mix between CS and compression:Colas Schretter, David Blinder, Tim Bruylants, Peter Schelkens and Adrian Munteanu, Efficient scalable compression of sparsely sampled images, IEEE International Conference on Image Processing 2015, Quebec City, Canada, September 27-30 2015.<br />Poster: http://homepages.ulb.ac.be/~cschrett/posters/ICIP2015_poster.pdfAdvanced sparse sampling acquisition
[…]Daughter and Father - a warm geometry . . .http://mathblogging.org/post/1307392015-10-08T12:45:00-04:00JoAnne Growney Kate Stange is a mathematician -- from the Canadian province of Ontario and now at the University of Colorado -- whose father, Ken Stange, is a visual artist and poet. I met them on the internet via our combined interests in the intersections of poetry and mathematics. Lots of years ago, Kate gathered an online anthology of mathy poems. One of her recent online ventures is the development of WIN -- Women in Number Theory. Below I offer one of Ken Stange's
[…]Moving gently on …http://mathblogging.org/post/1307352015-10-08T12:40:39-04:00Peter SmithI’m planning to go to a couple of lecture courses this term (including Peter Johnstone’s famed, take-no-prisoners, category theory course), and probably a weekly reading group too. I also need to do quite a bit of other reading over the … Continue reading →An Interview with Professor Sir Michael Berryhttp://mathblogging.org/post/1307382015-10-08T12:30:40-04:00Bishal DebProfessor Sir Michael Berry, eminent physicist, visited Chennai Mathematical Institute in April, early this year. I along with some of my friends had an opportunity to interview him. Below is the interview from the CMI Youtube channel.  Toward Infinity . . .http://mathblogging.org/post/1307342015-10-08T11:49:00-04:00JoAnne Growney During summer teaching opportunities a dozen or more years ago in Deva, Romania I met Doru Radu who taught English there -- and our mutual love of poetry led us to collaborate on English translations of work by Romanian poets George Bacovia and Ileana Malancioiu. Now Doru is in Poland and he is translating Polish poetry into Romanian. One of his favorite poets is Ewa Lipska -- a poet I have met via Poetry International. Below is her poem "Newton's
[…]Authors “did not have permission” to use pesticide datahttp://mathblogging.org/post/1307332015-10-08T11:30:39-04:00Shannon PalusAn environmental journal is retracting an article about the risks of pesticides to groundwater after determining it contained data that “the authors did not have permission (implicit or explicit) to publish.” According to the retraction note in Environmental Monitoring and Assessment, the paper said the data came from a non-author’s PhD thesis, but it’s not there. […]
The post Authors “did not have permission” to use pesticide data appeared first on
[…]Members of Congress Salute U.S. Mathematical Olympiad Teamhttp://mathblogging.org/post/1307542015-10-08T11:12:07-04:00UnknownFor the first time since 1994, the United States won first place at this year’s 56th International Mathematical Olympiad (IMO). The team of six high school students and their coaches were featured in all major news outlets across the country, but U.S. congressmen are calling for one more form of recognition.Using the Wolfram Language in the Classroom: Historyhttp://mathblogging.org/post/1307322015-10-08T10:58:34-04:00Adriana O'BrienIt’s on to history for the Wolfram Language in the Classroom series. History and social studies have the potential to incorporate lots of real-world data to examine relationships between politics, economics, and geography. The Wolfram Language comes with built-in knowledge on a wide variety of topics, including historical events, financial information, socioeconomic data, and geographic [...]How to Create Art With Mathematicshttp://mathblogging.org/post/1307312015-10-08T10:45:58-04:00Pradeep MutalikCan you generate aesthetically pleasing, symmetrical curves with two numbers and a simple mathematical function?Most successful blog post everhttp://mathblogging.org/post/1307292015-10-08T09:59:11-04:00AndrewLast month, I posted this on the sister blog at the Washington Post: Under the subject line, “My best friend from 1st grade wrote this article,” Joshua Vogelstein pointed me to pointed me to an article in the journal Marketing Science . . . written by Brett Gordon and Wesley Hartmann . . . Then […]
The post Most successful blog post ever appeared first on Statistical Modeling, Causal Inference, and Social Science.Abstract Math discomfortshttp://mathblogging.org/post/1307302015-10-08T09:54:32-04:00tomcircleOriginally posted on Math Online Tom Circle:<br />3 Wide Discomforts For Abstract Math Students 1. Group : Coset, Quotient group, morphism… 2. Limit ε-δ: Cauchy 3. Bourbaki Sets: Function f: A-> B is subset of Cartesian Product AxB. Students should…Queen e Matematicahttp://mathblogging.org/post/1307262015-10-08T09:35:57-04:00Angelo StellaImage issues force retraction of liver transplant papershttp://mathblogging.org/post/1307282015-10-08T09:30:04-04:00amarcus41A group of researchers in Hong Kong and China have lost a pair of papers on liver transplantation after concerns were raised about the “origin of images” in the two studies. The articles appeared in the American Journal of Transplantation in January and February of 2006, and came from the lab of S. T. Fan, […]
The post Image issues force retraction of liver transplant papers appeared first on Retraction Watch.Should a football team run or pass? A game theory and linear programming approachhttp://mathblogging.org/post/1307252015-10-08T09:29:25-04:00Laura Albert McLayLast week I visited Oberlin College to deliver the Fuzzy Vance Lecture in Mathematics (see post here). In addition, I gave two lectures to Bob Bosch’s undergraduate optimization course. My post about my lecture on ambulance location models is here. My second lecture was about how to solve two player zero-sum games using linear programming. The application […]Moltiplica con le ditahttp://mathblogging.org/post/1307272015-10-08T09:21:57-04:00Angelo Stella"So long and thanks for all the fish"http://mathblogging.org/post/1307232015-10-08T09:00:00-04:00MarkI've fallen into this trap before.<br /><br />I'm driving down the road channel surfing the radio and I come across a snippet of something that sounds interesting on one of the NPR stations. I stop and listen long enough to start to get into the topic before I realize that this is RadioLab.<br /><br />Now I am faced with a difficult choice:<br /><br />I can change the station despite having become curious about what's going to happen;<br /><br />Or I can continue to listen until the inevitable annoyance and disappointment kicks in.<br /><br />I have […]