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thebigkelu:the orbit of the planets in our solar system

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5:00 AM | Spring Break

(Click on the comic if you can't see the full image.) (C)Copyright 2015, C. Burke.Did he spring forward and fall back at the same time? Did he walk downstairs alone (and not in pairs)? These guys were last seen back in this 2012 comic. Come back often for more funny math comics. Okay?

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Update: I’m seeing a large positive response to these news posts, and these posts are also taking as long to write as a regular column. So going forward, this type of news summary will replace the last game theory column at the end of every month. —- This is the current installment of the monthly … Continue reading The Most Famous Game Theory Tournament, Predicting March Madness, Explaining The Origins Of Life – Game Theory News (March 2015)

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Submitted by Willgallia:Drawing portraits of Mathematicians with space filling curves. (Some are only discrete space filling).The final drawings looks like the image below.Thanks for the submission, Will Gallia! These are amazing!!! For those of you who don’t know what space filling curves are, I wrote a post about them a while back. To see more of Will Gallia’s cool drawings, click here. :D

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12:07 PM | Book Matters

Don't know if I'll get around to fully reviewing any of these volumes, but will make note of a few books today:
1) First, happy to see that Matthew Watkins has a new publisher and new publicity for his delightfully wonderful trilogy on prime numbers (I loved the first volume, but haven't actually gotten around to the other two yet):
http://www.secretsofcreation.com/index.html
Volume 1

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curiosamathematica:
An impossible Penrose triangle, available as a T-shirt print.

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It’s not true. It can’t be. Or is it? Math can prove your intuition wrong in games like the Monty Hall paradox or million dollar streak. Don’t trust your gut…in fact, everyone in the world is the same age! We’ll show that in any group size N, everyone must have the same age. The proof … Continue reading Only Smart People Can Spot The Flaw In This Argument, Can You? Mathematical Proof – Everyone In The World Is The Same Age! Sunday Puzzle

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7:48 PM | This Week

Well, first time writing this kind of (personal) post, but I thought it will be a good way to let you all know why I haven’t been writing much lately and I won’t do much in the next period eighter. First, at university everything was doubled regarding homework or class work in general. I will […]

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5:27 PM | Sweet Number Pi

"Sweet Number Pi." The irrationally long song about the number pi...From College Humor's Facebook page over at http://fb.me/CollegeHumor★★ CLICK "READ MORE" TO WATCH VIDEO! ★★(function(d, s, id) { var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) return; js = d.createElement(s); js.id = id; js.src = "//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.3"; fjs.parentNode.insertBefore(js, fjs);}(document, 'script', 'facebook-jssdk'));"Sweet Number Pi." The […]

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11:15 AM | Of Engineers and Mathematicians

Okay, a little different 'Sunday reflection' this morning.... ;-)
A mathematician and an engineer capsize a canoe and end up on a deserted island. They quickly notice that there are just two palm trees on the island and each bears one lone coconut at the top. The engineer doesn't hesitate to climb up one palm, grab the coconut, and eat it. Seeing this, the mathematician scurries up the other

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7:30 AM | Details, Details, Details, ...

March 29th, 2015How long is a year on Neptune?Well a year on Neptune takes 1
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primepatterns:In my previous post I provided some initial evidence of a remarkable correlation between the number, position and relative size of the major butterflies of the fractal formed from iteration of the Riemann zeta function, and the number, position and relative amplitude of the maxima of the Riemann-Siegel Z function.I promised to provide further evidence for the correlation by showing a map of a region of the fractal at a height of around 2447i where there is a particularly large
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March 28th, 2015Pi Day was on March 14th, and I waited a week to see if anyone would
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No summary available for this post.

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3:45 PM | Math From the Week-Gone-By

Some of the things I DIDN'T cover at Math-Frolic:
1) For any hard-core statistics readers out there, a thoughtful, longish re-post from Deborah Mayo (on objectivity in stats):
http://errorstatistics.com/2015/03/21/objectivity-in-statistics-arguments-from-discretion-and-3-reactions/
2) And from Andrew Gelman, more interesting p-value stuff:
http://andrewgelman.com/2015/03/27/imagining-p/
3)

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5:00 AM | BODMAS

(Click on the comic if you can't see the full image.) (C)Copyright 2015, C. Burke.I thought about ending with a comment about their trainer, Mr. Bechdel, but I thought better of it. BODMAS is another mnemonic for the Order of Operations, just as PEMDAS is. I don't know if it's a regional thing, or what people learned in grad school or what. Seriously, I didn't learn "PEMDAS" until I started teaching, and that was my second career. Come back often for more funny math comics. Okay?

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1:04 AM | Computational Data Analysis

Here are a few reports I produced for my Computational Methods for Data Analysis class. We examined methods for handling data sets varying from songs to videos. Each report contains Matlab code that can be run along with the appropriate data sets.Report 1: Three-Dimensional Signal ProcessingJust the report | All filesIn this assignment, we examine the techniques of signal processing using the Fourier Transform. We are given a noisy data set of 20 samples of three-dimensional spatial data, […]

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7:47 PM | New Video – Divisibility By 11 Rule

In school you may have learned several divisibility rules 2 (last digit is even) 3 (sum is a multiple of 3) 5 (last digit is 0 or 5) 6 (divisible by 2 and 3) 9 (sum is a multiple of 9) In the following video, I explain how to check if a number is divisible … Continue reading New Video – Divisibility By 11 Rule

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Welcome to this week’s Math Munch! Behold the Sphericon! What is that? Well, it rolls like a sphere, but is made of two cones attached with a twist– hence, the spheri-con! The one in the video is made out of pie (not sure why…), but you can make sphericons out of all kinds of materials. […]

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1:52 PM | The disadvantages of Free Web Hosting

If there’s one thing we’re probably all agreed on, it’s that when it comes to buying and goods and services, value for money is the top priority. From web hosting to wardrobes, digital downloads to doors and windows, when we set out to make a purchase, most of us look beyond the mere price as its ... Read more
Visit the original post The disadvantages of Free Web Hosting for the best experience of reading!

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2:52 AM | are you experienced?

Don't despairA search for "math" in the iTunes store is likely to disappoint (maybe "maths" or "mathematics" would provide better results). I haven't tried Math Drills Lite - it is likely the last thing I would want to download, yet it comes up first.A sad situationBut this is happy post, because there is a math app, well, more of an interactive book, that is engaging, interesting, well written, and attractively designed, that conveys mathematics as its practitioners and enthusiasts […]

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2:02 AM | Of Jocks and Graph Laplacians

I first read the story via Jason Rosenhouse here:
http://scienceblogs.com/evolutionblog/2015/03/24/john-urschel-does-math/
...just a brief post about a journal article (that you may have been awaiting... or, NOT): "A Cascadic Multigrid Algorithm for Computing the Fiedler Vector of Graph Laplacians" by mathematician John Urschel... who, just happens to play pro lineman for the Baltimore Ravens

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Stupiti che 1 non sia primo? Scopriamo insieme perché è "solo" l'unità!Abbiamo già visto come, partendo dai numeri primi, si possa sviluppare un discorso più o meno approfondito sulle fondamenta matematiche. Altrettanto fondamentale, però, si rivela provare a rispondere alla domanda su quale sia il numero primo più piccolo. E', infatti, abbastanza noto come il numero 1 sia stato ora inserito ora escluso dalla lista dei numeri primi, ottenendo in alcuni casi lo status di più piccolo tra […]

Agargun A.G. & Fletcher C.R. (1997). The Fundamental Theorem of Arithmetic Dissected, The Mathematical Gazette, 81 (490) 53-57. DOI: http://dx.doi.org/10.2307/3618768

Crandall R. & Pomerance C.B. (2005). Primes!, Prime Numbers, Prime numbers: a computational perspective 1-82. DOI: http://dx.doi.org/10.1007/0-387-28979-8_1

Caldwell C.K. & Xiong Y. (2012). What is the smallest prime?, Journal of Integer Sequences, 15 arXiv: 1209.2007v2

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Winifred Edgerton Merrill fu la prima americana ad ottenere un dottorato in matematica presso la Columbia University nel 1886. Nella sua tesi sviluppò una rappresentazione geometrica degli infinitesimi in diversi sistemi di coordinate, utilizzando lo jacobiano per per derivare le trasformazioni tra gli integrali nei diversi sistemi.Tra matematica e astronomiaNata a Ripon, nel Wisconsin, il 24 settembre del 1862 da Emmet e Clara Edgerton, si trasferisce con la famiglia a New York intorno al […]

Kelly S.E. & Rozner S.A. (2012). Winifred Edgerton Merrill: "She Opened the Door", Notices of the American Mathematical Society, 59 (04) 504-512. DOI: http://dx.doi.org/10.1090/noti818

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Winifred Edgerton Merrill fu la prima americana ad ottenere un dottorato in matematica presso la Columbia University nel 1886. Nella sua tesi sviluppò una rappresentazione geometrica degli infinitesimi in diversi sistemi di coordinate, utilizzando lo jacobiano per per derivare le trasformazioni tra gli integrali nei diversi sistemi.Tra matematica e astronomiaNata a Ripon, nel Wisconsin, il 24 settembre del 1862 da Emmet e Clara Edgerton, si trasferisce con la famiglia a New York intorno al […]

Kelly S.E. & Rozner S.A. (2012). Winifred Edgerton Merrill: "She Opened the Door", Notices of the American Mathematical Society, 59 (04) 504-512. DOI: http://dx.doi.org/10.1090/noti818

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Direi che oggi pomeriggio è stato un bel respirare, al Palazzo Brera. Cristina Lazzeroni dell'Università di Birmingham è venuta alle 18 (come avevo scritto nel post precedente) per raccontare del bosone di Higgs, del modello standard e di materia e antimateria. E' una sperimentale presso l'esperimento LHCb al CERN, l'esperimento dedicato proprio alla ricerca su uno dei grandi misteri dell'universo: perché in esso c'è un eccesso di materia (e d'altra parte se non fosse così, non ci sarebbe […]

Aaij R., B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, M. Alexander & S. Ali & (2013). First Observation of CP Violation in the Decays of B_{s}^{0} Mesons, Physical Review Letters, 110 (22) DOI: http://dx.doi.org/10.1103/physrevlett.110.221601

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Per i I cieli di Brera, il 24 settembre (domani... scusate per il ritardo nell'annuncio...) alle 18 presso la Sala delle Adunanze dell'Istituto Lombardo nel Palazzo Brera sito in via Brera 28 (Milano), si terrà la conferenza La fisica delle particelle e il Large Hadron Collider: recenti sviluppi e questioni aperte: Cristina Lazzeroni ci introdurrà alla fisica delle particelle e agli studi fatti al Large Hadron Collider del Cern di Ginevra mettendo l’accento su recenti sviluppi come la
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Aad G., J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, S. H. Abidi, M. Abolins, O. S. AbouZeid & H. Abramowicz & (2014). Measurement of the Higgs boson mass from the $H\to \gamma \gamma $ and $H\to Z{Z}^{*}\to 4\ell $ channels in $pp$ collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector, Physical Review D, 90 (5) DOI: http://dx.doi.org/10.1103/physrevd.90.052004

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mluebbecke tweeted: @mluebbecke

@yoyoichiban conversant is always true when I should be working (@AcademicsSay!); maybe @JFPuget should answer for this partic. application

2015-03-31 21:45:32

rmathematicus tweeted: @rmathematicus

RT @KateMorant: Is Vol 41 the biggest Whewell’s Gazette to date? Certainly it has the shortest comment ;) Both thx to @rmathematicus https:…

2015-03-31 21:43:23

rmathematicus tweeted: @rmathematicus

“@HASTS_MIT: Historians of Technology-Reminder: SHOT conference proposal deadline is today:http://t.co/o870z4Dyzy”

2015-03-31 21:42:05

rmathematicus tweeted: @rmathematicus

RT @AlexiBaker: "The Iconography of Tycho Brahe's Small Gilt Brass Quadrant" by Liba Taub & Emma Perkins at @CambridgeHPS: https://t.co/Anl…

2015-03-31 21:41:19

rmathematicus tweeted: @rmathematicus

RT @Codicologist: Tuned in and listening to @SLevelt and @katemond on @BBCRadio3 discussing twitter, marginalia & all the things we medieva…

2015-03-31 21:41:03

mluebbecke tweeted: @mluebbecke

@yoyoichiban when that means that they hide away the unbelievable complexity of some decision problems then yes @JFPuget

2015-03-31 21:26:55

mluebbecke tweeted: @mluebbecke

@yoyoichiban no, unfortunately not. must admit that I did not hear many talks outside optimization/discr.math./algorithms/theor.CS @JFPuget

2015-03-31 21:19:57

CardColm tweeted: @CardColm

RT @MGardner100th: Critical Point Celebrating the Mind—Bob Crease, Physics World. What happens to a balloon in an accelerating car? http://…

2015-03-31 21:16:23

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