• Friday math movie: Doodling in math class - binary trees

    Updated: 2011-01-31 18:42:14
    Bored in your math class? Here's some doodles that may make it more interesting, from Di Hart.

  • Using Maxima Output in Octave

    Updated: 2011-01-31 18:36:58
    Home About Math Books Table of Contents Write for us Applied Math Essential Math History Math Education Math News Math Websites Software Suggested Reading Tutorial Unsolved Problems Using Maxima Output in Octave Posted by John F . McGowan , Ph.D . in Applied Math Software on January 31st , 2011 no responses Introduction This is the third in a series of articles on Octave starting with Octave , An Alternative to the High Cost of MATLAB Octave is a free , both free as in beer and free as in speech , MATLAB compatible numerical programming tool available under the GNU General Public License . In part because MATLAB has become the de facto industry standard for numerical programming , Octave is of particular interest to individuals , companies , and organizations engaged in numerical and

  • A Month of Math Software – January 2011

    Updated: 2011-01-27 07:43:38
    I tend to keep an eye out for news relating to mathematical software and thought that I’d start sharing my monthly notebook with the world in case it proved to be useful to anyone else.  If you have any math-software news that you’d like to share then feel free to contact me. Releases – Commercial Mathcad Prime [...]

  • Wild About Math bloggers 1/14/11

    Updated: 2011-01-25 17:42:53
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos Wild About Math bloggers 1 14 11 January 25th , 2011 by Sol The 1 21 edition is at Equalis Here’s last week’s article . Here’s my roundup of this second week of January Carnival of Mathematics 73 is up at Walking . Randomly Maxwell’s Demon has an interesting spin on the prisoner’s dilemma , in a group . setting Last semester I offered my students 1,000,000 dollars . They turned me down . This was lucky , despite the money and glamour of academic mathematics , I do not have a million dollars . The game was simple . The class of 100 each had to write a number . The highest number won . Of course there was a catch , the prize was 1,000,000 divided by the winning number . The best outcome for

  • Using Octave, a Free MATLAB Alternative

    Updated: 2011-01-24 17:09:14
    , Home About Math Books Table of Contents Write for us Applied Math Essential Math History Math Education Math News Math Websites Software Suggested Reading Tutorial Unsolved Problems Using Octave , a Free MATLAB Alternative Posted by John F . McGowan , Ph.D . in Applied Math Software Tutorial on January 24th , 2011 4 responses Introduction Octave is a free , both free as in beer and free as in speech , MATLAB compatible numerical programming tool available under the GNU General Public License . MATLAB , an abbreviation for Matrix Laboratory” , is currently the most widely used commercial , proprietary numerical programming tool . Even a single license for the MATLAB software is a substantial cost . MATLAB is essentially a scripting language similar to Perl , Python , or PHP with a

  • Great article about Vi Hart in the New York Times

    Updated: 2011-01-19 06:44:57
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos Great article about Vi Hart in the New York Times January 18th , 2011 by Sol Check out Bending and Stretching Classroom Lessons to Make Math Inspire at the New York Times . It’s a great interview with Vi Hart . You’ll need a free account at the New York Times to read the . article I didn’t know that Hart graduated with a degree in music and never took a math course in college . Just two years after graduating she has produced amazing work If you enjoyed this post , make sure you subscribe to my RSS feed One Response to Great article about Vi Hart in the New York Times” By Jon on Jan 19, 2011 Reply Thanks for the link . It looks really interesting just by the photo . I never would have

  • Octave: An Alternative to the High Cost of MATLAB

    Updated: 2011-01-17 18:00:26
    : Home About Math Books Table of Contents Write for us Applied Math Essential Math History Math Education Math News Math Websites Software Suggested Reading Tutorial Unsolved Problems Octave : An Alternative to the High Cost of MATLAB Posted by John F . McGowan , Ph.D . in Applied Math Software on January 17th , 2011 23 responses Introduction Octave is a free both free as in beer and free as in speech MATLAB compatible numerical programming tool available under the GNU General Public License . MATLAB , an abbreviation for Matrix Laboratory” , is currently the most widely used commercial , proprietary numerical programming tool . Even a single license for the MATLAB software is a substantial cost . MATLAB is essentially a scripting language similar to Perl , Python , or PHP with a

  • Ma & Pa Kettle Math

    Updated: 2011-01-15 05:07:16
    http://www.youtube.com/watch?v=Bfq5kju627c SHARETHIS.addEntry({ title: "Ma & Pa Kettle Math", url: "http://wildaboutmath.com/2011/01/14/ma-pa-kettle-math/" });

  • An interesting problem with sums

    Updated: 2011-01-14 07:14:12
    Wild About Math Making Math fun and accessible Home About Articles Math contest problem links Videos An interesting problem with sums January 14th , 2011 by Sol Check out this brand new video by James Tanton . In it , he tackles a problem I’ve personally enjoyed solving determining which positive integers can be written as a sum of consecutive positive integers . For example , 6 1+2+3, 7=3+4, but 8 can’t be written as a sum of consecutive . integers The video tackles this problem in Tanton’s landmark style , with dots http : www.youtube.com watch v=Rc4NDQnqoLM And , as usual , there’s an extra credit . problem Enjoy If you enjoyed this post , make sure you subscribe to my RSS feed One Response to An interesting problem with sums” By Jonathan on Jan 17, 2011 Reply I solve this with a group

  • New Google phone app solves sudoku

    Updated: 2011-01-11 17:45:13
    Check out this New Scientist article and the video below. Wow! http://www.youtube.com/watch?v=rdftOloAH9Q Hat tip to Equalis. SHARETHIS.addEntry({ title: "New Google phone app solves sudoku", url: "http://wildaboutmath.com/2011/01/11/new-google-phone-app-solves-sudoku/" });

  • Weighted polynomial fitting in MATLAB (without any toolboxes)

    Updated: 2011-01-07 17:08:28
    Someone recently contacted me with a problem – she wanted to use MATLAB to perform a weighted quadratic curve fit to a set of data.  Now, if she had the curve fitting toolbox this would be nice and easy: x=[ 1 2 3 4 5]; y=[1.4 2.2 3.5 4.9 2.3]; w=[1 1 1 1 0.1]; f=fittype('poly2'); options=fitoptions('poly2'); options.Weights=[1 1 1 1 [...]

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