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Science News
July 5, 2003
Ivars Peterson |
Alphamagic Squares Magic squares have fascinated people for thousands of years. They consist of a set of whole numbers arranged in a square so that the sum of the numbers is the same in each row, in each column, and along each diagonal. A twist on the concept, the alphamagic square, is interesting, too.   |
Science News
June 24, 2006
Ivars Peterson |
Counting Franklin's Magic Squares One mathematician finds that Benjamin Franklin's remarkable magic squares are just three of more than 1 million possibilities. |
Science News
July 1, 2006
Ivars Peterson |
Magic Square Physics Taking a magic square or cube for a spin reveals some interesting properties. |
Science News
January 26, 2008
Julie J. Rehmeyer |
Math Trek: Benjamin Franklin Plays Sudoku Founding father entertained himself devising beautiful mathematical puzzles. |
Science News
January 3, 2004
Ivars Peterson |
Perfect Magic Cubes A magic cube is a three-dimensional array of whole numbers, in which each row, column, and body diagonal adds up to the same total. A perfect magic cube is one in which the diagonals of each vertical or horizontal slice through the cube also sum to the same value. Mathematicians are intrigued. |
Science News
October 4, 2003
Ivars Peterson |
A Magic Knight's Tour For as long as chessboards have existed, there have been puzzles involving chessboards and chess pieces. Some of the most enduring conundrums involve knights. |
Science News
July 17, 2004
Ivars Peterson |
Waring Experiments The different ways of expressing whole numbers as sums of parts has long fascinated both professional and amateur mathematicians. |
Science News
November 25, 2000
Ivars Peterson |
Square of the Hypotenuse A history of the well-traveled and perpetually youthful Pythagorean Theorem... |
Science News
May 4, 2002
Ivars Peterson |
Prime Spirals There is truly not only mystery but also beauty in the distribution of prime numbers... |
Science News
May 6, 2000 |
Completing Latin Squares Latin Squares have proved useful for a variety of purposes. However, their generation is a "quasigroup completion problem" which can involve difficult computation and a phase transition. |
HBS Working Knowledge
January 12, 2004
Jonathan Byrnes |
Bridge the Gap Between Strategy and Tactics: Part 3 The Magic Matrix enables managers to go far beyond core integrated planning into much more sophisticated, powerful advanced integrated planning. Here are six applications. |
The Motley Fool
September 9, 2011
Shubh Datta |
Magic on the Move Magic Software is moving in the right direction. |
Science News
August 24, 2002
Ivars Peterson |
Probabilities in Bingo What makes the game suspenseful is the tantalizing uncertainty about when someone will achieve a Bingo. It's natural to wonder how long a typical game would last. More precisely, what is the average number of calls required to complete a game for a given number of players? |
Science News
September 25, 2004
Ivars Peterson |
Euler's Sums of Powers For anyone fascinated by powers and integers, there's no shortage of problems to tackle, whether by ingenious logic or massive computer search... PUzzle of the Week... |
HBS Working Knowledge
December 1, 2003
Jonathan Byrnes |
Bridge the Gap Between Strategy and Tactics Core integrated planning is a five-step process. Here are the key Magic Matrices, and some important planning issues they enable managers to address. |
The Motley Fool
January 21, 2011
Jim Royal |
Consumer Goods' Magic Formula This mechanical strategy could be magic. |
Science News
May 27, 2000
Ivars Peterson |
Math Trails in Ottawa ...math teacher Ron Lancaster of Hamilton, Ontario, has been creating "math trails" for both students and teachers as a way to demonstrate that mathematics can be found anywhere and everywhere... |
Linux Journal
October 2000
Jon Valesh |
Magic Enterprises Edition 8.3 for Linux Magic Enterprise 8.3 provides the back end, and Magic Tool Kit 8.3 provides the rapid development environment for e-commerce and other database-intensive applications. Between the two, you'll have everything you need for your database/web site integration. |
Science News
April 12, 2003
Ivars Peterson |
Constructing Domino Portraits One rendition of a famous portrait was constructed entirely from 48 complete sets of double-nine dominoes. The work of mathematician Robert Bosch of Oberlin College, this remarkable creation represents the successful application of a novel algorithm for approximating target images as arrays of dominoes. |
The Motley Fool
January 20, 2011
Jim Royal |
Big Pharma's Magic Formula Joel Greenblatt's Magic Formula revolves around two factors: How cheap is the stock? How profitable is the company? Let's see how some Big Pharma companies fare. |
Fast Company
Neal Ungerleider |
Jack Dorsey: "I Believe That The Square Wallet Experience Was The Peak" Square Wallet, the digital wallet from mobile payments company Square that allowed people to pay with just their name, may not stay dead for long. |
This Old House
John Kelsey |
Choosing and Using Squares These simple but indispensable measuring tools can do some amazing tricks |
The Motley Fool
January 21, 2011
Jim Royal |
Trucking's Magic Formula This mechanical strategy could be magic. |
The Motley Fool
January 21, 2011
Jim Royal |
Retail's Magic Formula Joel Greenblatt's Magic Formula revolves around two factors: How cheap is the stock? How profitable is the company? How do these retail companies fare?: Wal-Mart... Costco... Target... TJX... |
Science News
October 26, 2002
Ivars Peterson |
Tetris Is Hard As many computer- and video-game players have long known, the insanely addictive, immensely popular game of Tetris is tough. Now, researchers from MIT's Laboratory for Computer Science have analyzed Tetris from a computational perspective. |
The Motley Fool
January 21, 2011
Jim Royal |
Telecom's Magic Formula Joel Greenblatt's Magic Formula revolves around two factors: How cheap is the stock? How profitable is the company? How do these telecom companies fare?: AT&T... Verizon... Vodafone... Sprint Nextel... |
Fast Company
Austin Carr |
Why Jack Dorsey Killed The Square Credit Card Despite buzz about the potential of a Square credit card, other company sources indicate the project was recently killed. |
Searcher
September 2003
Barbara Quint |
Muggle Magic Today's information professionals probably book more online for their end-user client communities than I ever reached with intermediated searching, but, if they're doing their job well, the clients may never see the work. |
Fast Company
Austin Carr |
The Four Myths About Square's IPO Filing This week Square filed for its long-rumored and long-anticipated IPO, and the public finally got a look at how Square's business is actually performing. |
Science News
October 28, 2000
Ivars Peterson |
Dots and Boxes The familiar pencil-and-paper game of Dots-and-Boxes sounds exceedingly simple. Despite the simplicity of its rules, the game can be played on several different levels of sophistication... |
Popular Mechanics
June 2004 |
PM Tips And Hints Tips on how to get perfectly square cuts using a speed square saw guide and how to make that drywall job easier using flexible drywall knives. |
