X

+

The MLB World Series starts this week, and so now is a good time to relate a classic math puzzle about gambling on baseball. The MLB World Series has a best of seven format: the first team to reach four wins is the champion. Here’s the problem. Your friend wants to make an even-payoff bet […]

+

12:58 AM | Trig Review #1: Basic Trig & Graphing

becomingresolved:
Here is some useful information that I’ve created about the basics of trigonometry as well as the graphs. Part 2 is out. You can find it here.
All graphs come from Wolfram Alpha (very cool resource).
Degrees & Radians; Six Trig Functions
Coterminal Angles, Arc Length, and Signs
The All Important Unit Circle (sorry, it’s a bit hard to see)
Those Pesky Trig Graphs
I have to know more graphs???
I hope this has helped you get closer to being a master at trig. More
[…]

+

Math/Maths 128
Podcast Download:
http://pulse-project.org/sites/default/files/podcast/dl/mathmaths128.mp3
A conversation about mathematics between the UK and USA from Pulse-Project.org. After a (cough) short hiatus, Samuel and Peter are back for a one-off episode to talk about what they've been doing, some of the big stories they missed,
[…]

+

Welcome to this week’s Math Munch! Here’s a puzzle for you: You have 12 weights, 11 of which weigh the same amount and 1 of which is different. Luckily you also have a balance, but you’re only allowed to use it three times. Can you figure out which weight is the different weight? You certainly […]

+

7:55 PM | (x, why?) Mini: Break the Plane

(Click on the comic if you can't see the full image.) (C)Copyright 2014, C. Burke.Why are planes always parallelograms? Doesn't that get confusing? I've wanted to do this every Sunday since the season started, and then I forget until the last minute ... so I say, "That's okay. There's Monday Night, too!", but that hasn't worked out recently, either. So here it is.

+

Let’s do some math on Ebola before we start quarantining people
False positives are a motherfucker. Mathematics, as always, is the voice of reason in the face of hysteria.

+

11:15 AM | A Martin Gardner Sunday

This coming Tuesday marks the 100th anniversary of Martin Gardner's birth, so for a Sunday reflection, some quotes about the man:[several of these are taken from the Martin Gardner "testimonial" page: http://martin-gardner.org/Testimonials.html ]Douglas Hofstadter, in tribute to Martin, upon his death in 2010:"This is really a sad day… sad because his [Gardner's] spirit was so important to so many of us, and because he had such a profound influence on so many of us. He is totally
[…]

+

Love this proof my liberal arts students found for 1+2+3+4+3+2+1=4^2. (Count the squares vertically.)
- Steven Strogatz @stevenstrogatz Oct 16

+

10:10 AM | Himalayan Design Guru

Himalayan Design Guru is an animation/graphic design startup mainly based in Uttarakhand State of India. This surreal logo of HDG displays Himalayan mountains on top and Indian guru face in middle adjusted with bright colors.
Visit the original post Himalayan Design Guru for the best experience of reading!

+

10:05 AM | Diminishing Differences Puzzle

Source: Australian Mathematical Society Gazette Puzzle Corner 34
Problem: Begin with n integers x1, . . . , xn around a circle. At each turn, simultaneously replace all of them by the absolute differences
Repeat this process until every number is 0, then stop. Prove that this process always terminates if and only if n is a power of 2.

+

[…]

+

6:56 AM | Every Secant Counts - a.k.

In recent posts we have concerned ourselves with numerically approximating inverses of functions, seeking a value x for which f(x) equals some desired value y.
We began with the bisection method which, whilst terrifically stable, was unfortunately rather slow, so we went on to discuss Newton's method which used the derivative of the function to make a potentially far more accurate estimate of the location of the inverse, albeit at the risk of making a catastrophically worse one; a risk we […]

+

hyrodium:
The gif animation of folding the net of the tesseract(8-cell). ;-)
There are many kinds of the net of the tesseract.
http://hyrodium.tumblr.com/post/67134693288/hyrodiums-photostream-on-flickr-there-are-many

+

8:00 PM | Potpourri

Mathy stuff from the past week:
1) Andrew Gelman on liberal and conservative statistics:
http://andrewgelman.com/2014/10/10/conservative-liberal-comes-statistics/
and here, Gelman discusses the "statistical crisis in science" in latest edition of American Scientist:
http://www.americanscientist.org/issues/id.16259,y.2014,no.6,content.true,page.5,css.print/issue.aspx
2) A short piece on

+

This was put together for us by a English major. This is their struggle. [...]

+

3:42 PM | Balancing your Monkeys

Children with autism are often visual thinkers and benefit from using pictures and visual models to explain math concepts. While rods and stick bundles, as well as touch math, are primary resources to use when introducing addition, having children work with a number scale is another useful way to make the concept of addition […]
The post Balancing your Monkeys appeared first on autismpluslande.

+

12:30 PM | 10/17/14

10 + 1 - 7 = 1 * 4
Also:
1 + 0 + 1 = 7 - 1 - 4
Also:
10 = 1 + 7 + (1 * √4)
Also:
10 = (|1 - 7| - 1) * √4

+

11:00 AM | "A New Universal Law"

Natalie Wolchover never fails to enthrall. Her latest piece at Quanta is on a "curiously pervasive statistical law" that connects math, physics and biology. It's known as the Tracy-Widom distribution, after the founders who discovered that "Systems of many interacting components — be they species, integers or subatomic particles — kept producing the same statistical curve." In other words, similar to the bell curve, the Tracy-Widom distribution seems to operate universally, […]

+

6:39 AM | Rectilinear Social Icons

A colorful & sweet Social Icon set!
Visit the original post Rectilinear Social Icons for the best experience of reading!

+

5:00 AM | Max & Min

(Click on the comic if you can't see the full image.) (C)Copyright 2014, C. Burke.Some thought that they could have Max without Min, but he knew his boundaries, and Min was always there. Belle and Mr. Whiskers have been here for a while now, too. I think that this is there sixth appearance in seven years.

+

I gotta reblog it. Everyone’s doing it. Gotta have this to be one of the cool kids.

Sidebar

Filters

+

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

Citation

+

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

Citation

+

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

Citation

+

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
[…]

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

Citation

+

One of the exciting things about mathematical oncology is that thinking about cancer often forces me to leave my comfortable arm-chair and look at some actually data. No matter how much I advocate for the merits of heuristic modeling, when it comes to cancer, data-agnostic models take second stage to data-rich modeling. This close relationship […]

Gallaher, J. & Anderson, A.R. (2013). Evolution of intratumoral phenotypic heterogeneity: the role of trait inheritance., Interface Focus, 3 (4) 20130016. arXiv: 1305.0524v1

Citation

Shecky recommended Is Statway a Cargo Cult?

2014-10-20 17:33:01

outofthenorm2 tweeted: @outofthenorm2

RT @Samuel_Hansen: Just 8 hours and $2000. Let’s do this https://t.co/9Q8XFTLcUF

2014-10-20 17:32:40

outofthenorm2 tweeted: @outofthenorm2

RT @Samuel_Hansen: 7 hours to make Relatively Prime’s goal and tell more amazing mathematical stories. Hopefully this helps http://t.co/8Ms…

2014-10-20 17:32:32

outofthenorm2 tweeted: @outofthenorm2

2014-10-20 17:28:46

MindAfterMath tweeted: @MindAfterMath

2014-10-20 17:20:02

rmathematicus tweeted: @rmathematicus

“@cathyby: Pat'sBlog: Those Amazing Boole Girls - http://t.co/jlmexjNBss
Or, you can't keep a Cork woman down.”

2014-10-20 17:15:55

rmathematicus tweeted: @rmathematicus

“@historybeagle: The weekly bag of #histSTM goodies! http://t.co/DeQogTvrYH”

2014-10-20 17:15:00

rmathematicus tweeted: @rmathematicus

RT @AlexiBaker: Unearthing Arabia: Archaeological Adventures of Wendell Phillips @FreerSackler: http://t.co/xoIfjgUV0H #archaeology http://…

2014-10-20 17:14:09

X