Mathematicians and non-mathematicians alike have long been fascinated by geometrical problems, particularly those that are intuitive in the sense of being easy

For mathematicians or others who wish to keep up to date with the state of the art of geometrical problems, this collection of problems that are easy to state a

Victor Klee and Stan Wagon discuss some of the unsolved problems in number theory and geometry, many of which can be understood by readers with a very modest ma

The goal in putting together this unique compilation was to present the current status of the solutions to some of the most essential open problems in pure and

Sixteen of today's greatest unsolved mathematical puzzles in a story-driven, illustrated volume that invites readers to peek over the edge of the unknown. Most