• List of math interactives on IntMath.com

    Updated: 2012-03-31 17:06:01
    Math manipulatives on IntMath.com

  • VIDEO: "R" Checking the reference values ("Y" Matrix).

    Updated: 2012-03-30 23:18:00
    (This article was first published on NIR-Quimiometría, and kindly contributed to R-bloggers) To leave a comment for the author, please follow the link and comment on his blog: NIR-Quimiometría. R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web Scraping) statistics (regression, PCA, time series,ecdf, trading) and more...

  • 9 ways to program for Android devices using Android devices

    Updated: 2012-03-26 14:47:12
    #leftcontainerBox { float:left; position: fixed; top: 60%; left: 70px; } #leftcontainerBox .buttons { float:left; clear:both; margin:4px 4px 4px 4px; padding-bottom:2px; } #bottomcontainerBox { height: 30px; width:50%; padding-top:1px; } #bottomcontainerBox .buttons { float:left; height: 30px; margin:4px 4px 4px 4px; } These days almost all of us are carrying around seriously capable little computers in the form of our mobile phones.  Although these devices have a similar amount of horsepower to supercomputers of old, most of us only use a fraction of their potential– after all, you don’t need a supercompter to send text messages, look [...]

  • 1959 – Donald Duck – Donald in Mathmagic Land

    Updated: 2012-03-23 13:54:36
    In case you've never seen this classic Math movie, I think you'll enjoy this.

  • An SAT math problem with logic, algebra, and inequalities

    Updated: 2012-03-23 03:26:33
    Inspired by a post at College Confidential.

  • An interesting SAT math triangle problem

    Updated: 2012-03-23 02:18:07
    This is my first foray into making videos on solving interesting SAT problems. I saw an SAT math problem at College Confidential which essentially says this: "A triangle has two sides of length 6 and 7. Which of the following could the area of the triangle possibly be?" And then it gives three choices and [...]

  • Pythagasaurus

    Updated: 2012-03-22 22:41:18
    Hat tip to io9.com.

  • Preview the Ultimate Computation Environment–Now for Finance

    Updated: 2012-03-22 17:46:58
    Computation has always been at the center of what Wolfram does... but finance hasn't been, at least not until now. In recent months, the team has been taking our ultimate computation environment and specializing it for finance. It's amazing some of the results our technology readily achieves in this domain--whether ...

  • Steven Krantz – Inspired by Math #6

    Updated: 2012-03-20 13:49:12
    About "A Mathematician Comes of Age:" A Mathematician Comes of Age discusses the maturation process for a mathematics student. It describes and analyzes how a student develops from a neophyte who can manipulate simple arithmetic problems to a sophisticated thinker who can understand abstract concepts, can think rigorously, and can analyze and manipulate proofs. Most [...]

  • Numberphile channel on Youtube

    Updated: 2012-03-14 16:56:52
    I just learned about this new Youtube channel. Numberphile provides viewers a new perspective when it comes to numbers. From Googols and Googolplexs to Root2, this channel offers anyone the “Perfect Number”. Currently, they have a video on the sounds of Pi, here is the link to check it out – http://www.youtube.com/user/numberphile/featured Here's a nice [...]

  • Pi Day Music Video

    Updated: 2012-03-14 14:11:35
    Another fan letter, this one from Jimmy Pascascio of Music Notes Online. As regular readers know I rarely plug commercial math ventures. I'm making an exception here because I like what these folks are doing. And, it's a great fit for a Pi Day post. Enjoy! Hello Sol, I came across your blog and noticed [...]

  • A bug in Mathematica’s CUDADot in version 8.0.1

    Updated: 2012-03-14 00:40:52
    #leftcontainerBox { float:left; position: fixed; top: 60%; left: 70px; } #leftcontainerBox .buttons { float:left; clear:both; margin:4px 4px 4px 4px; padding-bottom:2px; } #bottomcontainerBox { height: 30px; width:50%; padding-top:1px; } #bottomcontainerBox .buttons { float:left; height: 30px; margin:4px 4px 4px 4px; } After writing my recent article on GPU accelerated Matrix-Matrix multiplication using Maple, I thought that I’d try the same thing in Mathematica.  However, I instantly hit a problem on my 64bit Windows 7 machine running version 8.0.1 of Mathematica. In[1]:= a = RandomReal[1, {2, 2}] Out[1]= {{0.363441, 0.528656}, {0.208881, 0.510232}} In[2]:= b = RandomReal[1, {2, 2}] Out[2]= {{0.33536, 0.77615}, [...]

  • John MacCormick – Inspired by Math #5

    Updated: 2012-03-12 14:27:06
    About "Nine Algorithms That Changed the Future: The Ingenious Ideas That Drive Today's Computers" Every day, we use our computers to perform remarkable feats. A simple web search picks out a handful of relevant needles from the world's biggest haystack: the billions of pages on the World Wide Web. Uploading a photo to Facebook transmits [...]

  • The BYU Mathletes

    Updated: 2012-03-11 14:19:11
    I recently got this email about the BYU Mathletes and I thought I'd share it. The rap video is great. Sol, I recently saw that you highlighted Matt Lane and pointed out that he has a blog that looks at the intersection between math and pop culture. Recently at my school (BYU) we created a [...]

  • The new chic

    Updated: 2012-03-08 22:25:42
    I'm sick with one of those upper respiratory infections you inevitably get when you have kids in pre-school. And when I'm sick I have no tolerance for brainy activities, so I tend to gravitate toward cheap television. Today after watching one of my favorite sick-day shows I tried out a few episodes of Castle on Hulu, [...]

  • Tony Gonzalez – Inspired by Math #4

    Updated: 2012-03-05 05:18:11
    About Math Girls: Math isn’t hard. Love is. Currently in its eighteenth printing in Japan, this best-selling novel is available in English at last. Combining mathematical rigor with light romance, MATH GIRLS is a unique introduction to advanced mathematics, delivered through the eyes of three students as they learn to deal with problems seldom found [...]

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