Ivars Peterson
All Stories by Ivars Peterson

Computing
Games Theory
Online games can not only entertain but also provide valuable data for researchers tackling computervision and other tough computational problems.

Math
The Complexity of TipOver and Other Puzzles
Solving puzzles such as TipOver and River Crossing can be surprisingly difficult.

Math
DivideandConquer Multiplication
The most efficient way to multiply two large numbers is often far from obvious.

Math
Knitting Network
A skein of intriguing mathematical objects comes out of an evening devoted to knitting, crocheting, and other crafts.

Math
A Polyhedron with a Hole
A polyhedron with seven faces, 14 vertexes, 21 edges, and a hole makes an intriguing lamp.

Math
Art of the Tetrahedron, Revisited
A New Orleans sculptor and his tetrahedronbased artworks survived Hurricane Katrina.

Math
The Coin in the Cake
Hiding a coin in a cake offers a lucky slice and a tantalizing math problem.

Math
Rankings, Tournaments, and Playoffs
All outcomebased sports ranking systems are fundamentally flawed.

Math
Travels of a Shopper
Shoppers tend to be a lot less efficient than they could be when picking up groceries at the supermarket.

Math
Scripting Boffo Box Office
A computer model can help select movie scripts that lead to success at the box office.