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Posts

October 20, 2014

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3:00 AM | Monday Puzzle: Even Betting On The MLB World Series
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 […]
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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 […]

October 19, 2014

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10:42 PM | Math/Maths 128‏: What Samuel and Peter Did Next
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, […]
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9:35 PM | Weights, Crazy Geometry Game, and Pumpkin Polyhedra
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 […]
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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.
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7:31 PM | Fibonacci Pigeons
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5:58 PM | Let’s do some math on Ebola before we start quarantining...
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.  
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12:30 PM | 10/19/14
10 + 1 - 9 = 1 * √4 Also: 101 (mod 9) = 1 * √4 Also: 10 - 1 = 9 * 1^4
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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 […]

October 18, 2014

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5:00 PM | "I Don't Know" (A "Let It Go" Parody)
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4:13 PM | Love this proof my liberal arts students found for...
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
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3:30 PM | Just Another Limb
This is a *tad* disturbing... [...]
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12:30 PM | 10/18/14
10 = 1 + 8 + 1^4 Also: 1 + 0 + 1 = 8 * 1 / 4 Also: 101 (mod 8) = 1 + 4
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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!
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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.
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8:19 AM | Ο Άλλαν Τούρινγκ,μια ταινία και ένας διαγωνισμός κρυπτογραφίας.
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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 […]
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12:47 AM | hyrodium: The gif animation of folding the net of the...
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

October 17, 2014

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8:00 PM | Snakes on a Plane
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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
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4:31 PM | 23 Things People Who Can’t Do Math Understand
This was put together for us by a English major.  This is their struggle. [...]
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4:00 PM | Just Another Problem
Source: wronghands1 (via WordPress.com) [...]
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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.
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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
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12:00 PM | Higher Math
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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, […]
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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!
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5:31 AM | This is a real math problem
No summary available for this post.
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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.
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1:41 AM | I gotta reblog it. Everyone’s doing it. Gotta have this to be...
I gotta reblog it. Everyone’s doing it. Gotta have this to be one of the cool kids.
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