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Science News
July 27, 2002
Ivars Peterson |
Taxicab Numbers Curious properties sometimes lurk within seemingly undistinguished numbers.   |
Science News
August 19, 2000
Ivars Peterson |
Goldbach's Prime Pairs Evenly divisible only by themselves and one, primes are a rich source of speculative ideas that mathematicians often find simple to state but difficult to prove. The Goldbach conjecture is a prime example of such a conundrum. |
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... |
Science News
May 1, 2004
Ivars Peterson |
Counting on Fibonacci Fibonacci numbers have all sorts of amazing properties and links to many different kinds of mathematics |
Science News
June 22, 2002
Ivars Peterson |
Conquering Catalan's Conjecture Preda Mihailescu of the University of Paderborn in Germany finally may have the key to a venerable problem known as Catalan's conjecture, which concerns the powers of whole numbers. |
Science News
June 25, 2005
Ivars Peterson |
Magic Squares of Squares People have been toying with magic squares for more than 2,000 years--setting themselves increasingly difficult challenges to find arrays of numbers that fit given patterns. Here are some examples. |
Science News
March 30, 2002
Ivars Peterson |
Rainbow Randomness The branch of pure mathematics known as Ramsey theory concerns the existence of highly regular patterns in sufficiently large sets of randomly selected objects. Patterns can arise out of randomness in a variety of ways... |
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 27, 2007 |
Timeline: From the January 23, 1937, Issue America's First Slums... Expanding Universe Theory Receives Blow in Discussions... Famous Mathematical Problem Solved at Chicago... |
Science News
December 2, 2000
Ivars Peterson |
Zeroing In on Catalan's Conjecture Preda Mihailescu of the Swiss Federal Institute of Technology in Zurich has proved a theorem that is likely to lead to a solution of Catalan's conjecture, a venerable problem involving relationships among whole numbers... |
Science News
April 6, 2002
Ivars Peterson |
The EKG Sequence Sequences of numbers have long fascinated both amateur and professional mathematicians. Here's a recently discovered example that has prompted some serious mathematical investigation... |
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
February 16, 2008
Julie J. Rehmeyer |
Math Trek: Math on Display Visualizations of mathematics create remarkable artwork. |
Science News
July 29, 2006
Ivars Peterson |
Names for Numbers Recreational mathematics offers a vast playing field for amateur and professional mathematicians alike. Named numbers, such as Smiths, have all sorts of intriguing properties. |
Science News
January 26, 2008
Julie J. Rehmeyer |
Math Trek: Benjamin Franklin Plays Sudoku Founding father entertained himself devising beautiful mathematical puzzles. |
Salon.com
September 5, 2002
David Appell |
Math = beauty + truth / (really hard) Explaining what the winners of the world's top awards in mathematics actually do isn't as easy as adding 2+2. But we'll give it a try. |
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. |
