Sanghamitra సంఘమిత్ర

గణితం · Vedic Mathematics

Mental calculation, without paper or a calculator.

Medhavadhanam is a public showcase where students do mathematics on stage with no paper, pencil or calculator. These are the methods they use: cube roots, fifth roots, squares, the day of the week for any date. Sreenivasa has taught them since 2005 and written about them for twelve years. Try two of them yourself below.

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What an event looks like

No paper. No calculator.

Jump to a moment:

    These marks point into the video. They are not a transcript.

    Try it yourself

    Two drills you can try right now.

    Cube roots and squares, three and five at a time. Type your answers, press the button, and see how many you got. Nothing to download and no sign-up; it all runs on this page.

    Cube roots

    Each number on the left is a perfect cube. Type its cube root.

    CubeCube root

    Squares

    For each number on the left, type its square.

    NumberSquare

    The same methods the students show at Medhavadhanam. Ask about a seat if your child wants to learn them.

    Sreenivasa's own column, 2005 to 2016

    Twelve years of Mathematricks.

    Sreenivasa wrote 24 instalments for the Sanghamitra magazine, for parents and children to read together. Each one takes a single technique, shows how to teach it, explains why it works, and leaves a problem to try. Read one and you will see how he teaches.

    1. Te Vijaya Dasami 2006 PDF
    2. En Vijaya Dasami 2006 read online
    3. Te July 2006 PDF
    4. En July 2006 read online
    5. En Vijaya Dasami 2005 read online
    All 24 instalments The whole magazine

    From the club’s own albums

    Past events’ photographs.

    Medhavadhanam events, the summer programs, a seminar in Sunnyvale and Mathemagics in Virginia. Most of the captions are Sreenivasa's own.

    Students of the Srinivasa Ramanujan Mathematricks Club in front of the club banner, St. Louis, 2018
    2018Srinivasa Ramanujan Mathematricks Club 2018, St. Louis.
    Srinivasa Ramanujan Mathematricks Club 2015 Summer program participants.
    2015Srinivasa Ramanujan Mathematricks Club 2015 Summer program participants.
    Medhavadhanam 2014 @ Hindu temple of St. Louis - Audience experiencing the presentation
    2014Medhavadhanam 2014 @ Hindu temple of St. Louis - Audience experiencing the presentation
    Medhavadhanam 2014 @ Hindu temple of St. Louis - Participants waiting for questions
    2014Medhavadhanam 2014 @ Hindu temple of St. Louis - Participants waiting for questions
    Summer Program 2014 - Kids having fun while learning. Parents joined them in the fun activity.
    2014Summer Program 2014 - Kids having fun while learning. Parents joined them in the fun activity.
    Mathemagics 2014 @ City of Fairfax Regional Library, Virginia - Audience while solving a puzzle.
    2014Mathemagics 2014 @ City of Fairfax Regional Library, Virginia - Audience while solving a puzzle.
    Mathemagics 2014 @ City of Fairfax Regional Library, Virginia - Some of the Srinivasa Ramanujan Mathematricks club participants.
    2014Mathemagics 2014 @ City of Fairfax Regional Library, Virginia - Some of the Srinivasa Ramanujan Mathematricks club participants.
    Spring Session on March 30th, 2013 - Algebra using Vedic Mathematics
    2013Spring Session on March 30th, 2013 - Algebra using Vedic Mathematics
    Spring Session on March 30th, 2013 - Algebra using Vedic Mathematics
    2013Spring Session on March 30th, 2013 - Algebra using Vedic Mathematics
    Practicalculations using Vedic Mathematics participants during spring 2012
    2012Practicalculations using Vedic Mathematics participants during spring 2012
    Answering cube-root and fifth-root questions from the audience at SIUE campus, 30 March 2011
    2011Answering cube-root and fifth-root questions from the audience at SIUE campus, 30 March 2011
    Mathematricks Club 2010 Participants
    2010Mathematricks Club 2010 Participants
    Mathematricks Club 2009 Participants
    2009Mathematricks Club 2009 Participants
    Medhavadhanam 2009 Audience
    2009Medhavadhanam 2009 Audience
    Medhavadhanam 2009 program
    2009Medhavadhanam 2009 program
    Vedic Mathematics Seminar on May 8th, 2009 at Namaste Plaza, Sunnyvale, CA
    2009Vedic Mathematics Seminar on May 8th, 2009 at Namaste Plaza, Sunnyvale, CA
    Medhavadhanam 2008 Participants
    2008Medhavadhanam 2008 Participants
    Medhavadhanam 2007 Audience
    2007Medhavadhanam 2007 Audience

    The club

    Srinivasa Ramanujan Mathematricks Club.

    The summer program has run since 2005, and Medhavadhanam follows in August. Ages nine and above.

    Ask about the next summer Watch an event Past and upcoming events