\'Whimsical...rigorous and insightful.\' -- New York Times Book ReviewWhat is math? How exactly does it work? And what do three siblings trying to share a cake have to do with it? In How to Bake Pi, mat.... \'Whimsical...rigorous and insightful.\' -- New York Times Book ReviewWhat is math? How exactly does it work? And what do three siblings trying to share a cake have to do with it? In How to Bake Pi, mat...