What is the largest number less than 1? If x and y are any of two different positive numbers, which is larger, x2 + y2 or 2xy? What do you get if you cross a cube and an octahedron? Discover the surprising answers as David Wells conclusively proves that: you Are a mathematician Praise for David Wells's The Penguin Dictionary of Curious and Interesting Numbers. "This is a fascinating, strange, and probably unique book, one that I will look at again...