X

+

In the previous post, we have learned about the effects of a in the linear function with equation y = ax. In this post, we learn about the effects of adding b to that equation. That is, we want to learn the effects of b in the linear function with equation y = ax + […]Continue reading...
Math and Multimedia - School math, multimedia, and technology tutorials.

+

9:33 PM | Nuit Blanche in Review ( November 2015 )

Fluctuat Nec Mergitur Here are the blog entries we had since the last review ( October 2015 ) and some Hard Questions ImplementationsScampi: a robust approximate message-passing framework for compressive imaging False Discoveries Occur Early on the Lasso Path The Big List of Deep Learning Toolkits TensorFlow: Large-Scale Machine Learning on Heterogeneous Distributed Systems Conferences: Machine Learning Summer School 2016, University of Cadiz, Spain, May 11th to
[…]

+

9:28 PM | Spin Until You Lose – Sunday Puzzle

You spin a wheel and it randomly lands on $1, $2, or END. If you land on $1 or $2, you bank that money and get to spin the wheel again. You keep banking money until you land on END, at which point the game ends and you cash out whatever money you have banked. … Continue reading Spin Until You Lose – Sunday Puzzle

+

Happy Thanksgiving "break"!I just spent 4+ hours grading quizzes that I gave last week on Polynomial Operations. They turned out pretty good, so I was happy. A lot of the mistakes were predictable (subtracting with negatives is always such a problem!), and the kids did well with the division of polynomials.Some surprisingly so, especially considering the uproar that division caused in class. It helped that I told the kids to use whatever method "worked" for them. This student used long division
[…]

+

8:35 PM | Cofinality and the axiom of choice

What is cofinality of a[n infinite] cardinal? If we think about the cardinals as ordinals, as we should in the case the axiom of choice holds, then the cofinality of a cardinal is just the smallest cardinality of an unbounded set. It can be thought of as the least ordinal from which there is an … Continue reading Cofinality and the axiom of choice →

+

Víctor Frankenstein, otra versión cinematográfica del mito.Ayer fui a ver la nueva versión cinematográfica de Frankenstein, llamada Víctor Frankenstein, dirigida por el escocés Paul McGuigan y estelarizada por James McAvoy (Víctor) y Daniel Radcliffe (Igor). Para mí que soy un adorador del mito de Frankenstein y para quien la novela de Mary W. Shelley es el manantial desde donde brota la esencia de dicho mito, es inevitable mirar cualquier manifestación artística de este mito.Esta […]

+

8:21 PM | Shading My Linear Art Projects

First I want to thank those who have tried my Linear Art Project in their classrooms. I think this gives students a great experience with linear equations and how the slope/intercept impacts them. I have had a lot of questions on how I shade my projects (thank you Missy and Jessica), and now that Hunting, […]

+

8:08 PM | Computer images

Images by R71
http://im-possible.info/english/art/computer/r71.html
Author - http://r71.deviantart.com/

+

7:19 PM | The Mathematization of Commercials

People have been commercializing mathematics for years. There are numerous examples on Zazzle or ThinkFun or, heck, even Math Jokes 4 Mathy Folks. My first experience with this phenomenon occurred in eighth grade, when I learned that Russell Hardy would do your algebra homework for the price of a school lunch. There was demand for […]

+

Each week, we would like to invite readers of Stats Chat to submit nominations for our Stat of the Week competition and be in with the chance to win an iTunes voucher. Here’s how it works: Anyone may add a comment on this post to nominate their Stat of the Week candidate before midday Friday […]

+

If you’d like to comment on or debate any of this week’s Stat of the Week nominations, please do so below!

+

Today we’ll take a brief break from group theory to prove a fact about equivalence relations, namely, that they are the same as partitions. A partition is a pretty intuitive concept: you take a big set, and cut it up … Continue reading →

+

The American Mathematical Society (AMS) is one of the largest associations of mathematicians in the world, fostering scholarship and research. They have supported student chapters at various graduate level institutions. This fall, however, the newly formed AMS Williams Student Chapter became officially recognized as the first student chapter at an undergraduate institution. As part of

+

Directions: Using the numbers 1-9 at most once each time, create a graph that represents the temperature change over seven days. Overall temperature change is six degrees The temperature increase or decrease can not exceed three degrees per day The temperature change (increase or decrease) alternates between days Temperature for Day 1: ___ Temperature for […]

+

5:41 PM | You’re wrong about Common Core math: Sorry, parents, but it makes more sense than you think

You’re wrong about Common Core math: Sorry, parents, but it makes more sense than you think: James Goodman:The vast majority of the comments and coverage of these viral images and stories has been highly critical of the Common Core. Here’s the thing though — all of these criticisms boil down to a fundamental misunderstanding of the Common Core State Standards (CCSS).

+

The Bush presidency was my fault: I am so sorry my work stopped the Florida recount: John Allen Paulos:Specifically, Judge Wells wrote, “I agree with a quote by John Allen Paulos, a professor of mathematics at Temple University, when he wrote that, ‘the margin of error in this election is far greater than the margin of victory, no matter who wins.’ Further judicial process will not change this self-evident fact and will only result in confusion and disorder.” (Incidentally, the CNN
[…]

+

5:32 PM | Double Bar Graph- Open Middle Problem

Directions: Using the numbers 1-8 at most once each time, create a graph that represents the number of boys and girls participating in soccer, football, baseball and basketball. Half as many boys play soccer than girls The amount of boys in soccer is double the amount girls in football Three times as many boys play […]

+

3:47 PM | Summing up Squares

Earlier in the week my son’s math team had a practice problem with this sum: 2 + 5 + 10 + 17 + . . . . The question was how many terms would it take in order to be above 650? I though that this problem would make a good starting point for reviewing…

+

newest proof

+

newest proposition

+

newest proof

+

2:53 PM | Roller Coasters and Math

One goal this year is to have my classes complete more interdiciplinary projects. These projects move beyond district-adopted texts and often involve multiple subjects and student groups. I find value in having these projects as students often need to work in teams and apply their mathematical thinking in different situations. Back in September I came […]

+

newest proposition

+

newest proof

+

newest proposition

+

newest proof

+

2:17 PM | Volume of a Cube-Common Core 5MD.C.S

Volume of a CubeMath instructional video covering how to find the volume of a cube.This video will help with the Common Core Standard 5MD.C.S"Recognize volume as an attribute of solid figures and understand concepts of volume measurement."A cube is a 3D geometric shape with right angles and equal length sides.The 6 square faces of a cube create 8 corners (vertices), and 12 edges.The volume of a cube is found by multiplying base area * height.Because a cube has equal sides, any side can be […]

+

newest proposition

Sidebar

Filters

+

di diffusione della scienza e rivoluzioni cc @aubreymcfato @CristianCantoro Utilizzare i dati sulle citazioni in Wikipedia per misurare la diffusione dell'open accessScrivevo all'inizio del 2011 per i festeggiamenti del wiki-decennale di una rivoluzione irreversibile. E' stato piuttosto interessante leggere il titolo che technology review ha utilizzato per raccontare dell'ultimo degli articoli dedicati all'enciclopedia libera: Why Wikipedia + Open Access = Revolution.L'idea degli autori, Misha
[…]

Nielsen, F. (2007). Scientific citations in Wikipedia, First Monday, 12 (8) DOI: 10.5210/fm.v12i8.1997

Heather Ford, Shilad Sen, David R. Musicant & Nathaniel Miller (2013). Getting to the source: where does Wikipedia get its information from?, Proceedings of the 9th International Symposium on Open Collaboration, DOI: 10.1145/2491055.2491064

Misha Teplitskiy, Grace Lu & Eamon Duede (2015). Amplifying the Impact of Open Access: Wikipedia and the Diffusion of Science, Wikipedia Workshop at 9th International Conference on Web and Social Media (ICWSM), arXiv: 1506.07608v1

Citation

+

After (or before?) @StartsWithABang's balloon animals' post? A couple of week ago Ethan Siegel published a post about ballon animals, so I decide to repost an old piece that I wrote in 2011 for my italian blog: the english version is lost, but it is magically reposted here! Two one-balloon constructions and their associated graphsI recently discovered this interesting site, vihart. In the site there are some interesting paper and today I want to write something about Computational Balloon
[…]

Demaine E.D., Demaine M.L. & Hart V. (2008). Computational balloon twisting: The theory of balloon polyhedra., Proceedings of the 20th Canadian Conference on Computational Geometry (CCCG2008), 139-142.

Bryś K. & Lonc Z. (2009). Polynomial cases of graph decomposition: A complete solution of Holyer's problem, Discrete Mathematics, 309 (6) 1294-1326. DOI: 10.1016/j.disc.2008.01.054

Citation

+

Supponiamo di doverci confrontare con un animale, ad esempio un cane o un lupo (o più in generale con un animale, addomesticato o selvaggio). Secondo Konrad Lorenz il comportamento aggressivo di un cane viene influenzato da due stati d'animo differenti: l'ira e la paura.Si può allora provare a prevedere il comportamento del cane in funzione di quale dei due stati domina: nel caso in cui l'animale è dominato da paura o da ira, proporre una previsione è abbastanza semplice; nel caso in cui il […]

Zeeman E.C. (1976). Catastrophe Theory, Scientific American, 234 65-83. DOI: 10.1038/scientificamerican0476-65

Jean Petitot (2013). Complexity and self-organization in Turing, The Legacy of A.M. Turing, (E. Agazzi, ed.), Franco Angeli, Milano, 149-182. arXiv: 1502.05328v1

Citation

+

Non prevedevo di scrivere la versione italiana di un post sull'ultima news proveniente dal RHIC, ma mi è stato gentilmente chiesto, e provvedo ben volentieri. Inizio, però, con un piccolo cappello, alla fine del quale saprete che c'è anche un piccolissimo pezzetto (il doppio diminutivo è perché i firmatari del papero su arXiv sono veramente tanti) d'Italia in questa interessante scoperta.Tutto nasce da un post, nel flusso twittero, di Annalisa Arci, in cui racconta, in maniera e con un […]

Belavina A.A., Polyakova A.M., Schwartza A.S. & Tyupkina Y.S. (1975). Pseudoparticle solutions of the Yang-Mills equations, Physics Letters B, 59 (1) 85-87. DOI: 10.1016/0370-2693(75)90163-X

Hooft G.'. (1976). Symmetry Breaking through Bell-Jackiw Anomalies, Physical Review Letters, 37 (8) DOI: 10.1103/PhysRevLett.37.8

Hooft G.'. (1976). Computation of the quantum effects due to a four-dimensional pseudoparticle, Physical Review D, 14 DOI: 10.1103/PhysRevD.14.3432

Fukushima K., Kharzeev D.E. & Warringa H.J. (2008). The Chiral Magnetic Effect, Physics Review D, 78 (7) DOI: 10.1103/PhysRevD.78.074033

Kharzeev D.E. & Yee H.U. (2011). Chiral Magnetic Wave, Physical Review D, 83 DOI: 10.1103/PhysRevD.83.085007

STAR Collaboration (2015). Observation of charge asymmetry dependence of pion elliptic flow and the possible chiral magnetic wave in heavy-ion collisions, arXiv, arXiv: 1504.02175v2

Citation

+

A new clue about the #quarkgluonplasma from @RHIC_STAR at @BrookhavenLabWithin the particles that constitute atomic nuclei, protons and neutrons, there are the quarks, the elementary particles with fractional charges, linked to each other thanks to the gluons, bosons that carry the nuclear interaction. Thanks to the gluons it is impossible to observe, at present, free quarks, but it is expected that in the very first stage of the universe, matter was in a state called quark-gluon plasma. Thanks […]

Belavina A.A., Polyakova A.M., Schwartza A.S. & Tyupkina Y.S. (1975). Pseudoparticle solutions of the Yang-Mills equations, Physics Letters B, 59 (1) 85-87. DOI: 10.1016/0370-2693(75)90163-X

Hooft G.'. (1976). Symmetry Breaking through Bell-Jackiw Anomalies, Physical Review Letters, 37 (8) DOI: 10.1103/PhysRevLett.37.8

Hooft G.'. (1976). Computation of the quantum effects due to a four-dimensional pseudoparticle, Physical Review D, 14 DOI: 10.1103/PhysRevD.14.3432

Fukushima K., Kharzeev D.E. & Warringa H.J. (2008). The Chiral Magnetic Effect, Physics Review D, 78 (7) DOI: 10.1103/PhysRevD.78.074033

Kharzeev D.E. & Yee H.U. (2011). Chiral Magnetic Wave, Physical Review D, 83 DOI: 10.1103/PhysRevD.83.085007

STAR Collaboration (2015). Observation of charge asymmetry dependence of pion elliptic flow and the possible chiral magnetic wave in heavy-ion collisions, arXiv: 1504.02175v2

Citation

freakonometrics tweeted: @freakonometrics

RT @le_luk: "La France est gangrenée par une haute fonction publique omnisciente et inculte qui méprise l'université" https://t.co/40aZrC3s…

2015-11-30 05:33:57

freakonometrics tweeted: @freakonometrics

in the U.S. "teaching loads at research universities have declined almost 50 percent in the past 30 years" https://t.co/4SzWiD5Efb

2015-11-30 05:33:32

CardColm tweeted: @CardColm

RT @pickover: "It can't be true ... can it?" Rachael Formula. More info/discussion: https://t.co/gh6Lt76si1 https://t.co/sDc547kEyV

2015-11-30 05:29:26

MathFour tweeted: @MathFour

Thanks to my top interactors! @deadwarzombie @SssnakeSinclair @BobbyWarrenTDR #tweetjukebox via https://t.co/LujIG0HnGL

2015-11-30 05:25:33

CardColm tweeted: @CardColm

RT @pickover: This humor combines math and infinity. Source: https://t.co/l5XBYMK55b (thanks @dub_u) https://t.co/0idRQPRFme

2015-11-30 05:25:10

CardColm tweeted: @CardColm

After first rotation I got 0 is parallel to -18.... https://t.co/LBfXnaiBJZ

2015-11-30 05:25:05

CardColm tweeted: @CardColm

RT @SciencePorn: Some day, we will all die. https://t.co/BDauGVvDhn

2015-11-30 05:21:53

loronegro tweeted: @loronegro

Macbeth es una película contemplativa en todo momento, a la par del desarrollo de la tragedia.

2015-11-30 05:21:32

X