How one mathophobe conquered her fears, and others can, too. For years, science journalist Jennifer Ouellette made a living writing about subjects like physics, while avoiding the mathematics. Finally, she resolved to shed the dread and confront calculus, as she relates in her recent book "The Calculus Diaries: How Math Can Help You Lose Weight, Win in Vegas, and Survive a Zombie Apocalypse." We talked about her reconciliation with math, the history and uses of calculus (e.g., predicting rates of zombification), the sources of math anxiety and techniques for getting over it.