Empire of the Sum: The Rise and Reign of the Pocket Calculator

A New York Times Book Review Editors’ Choice

＂[A] lively, entertaining history.＂ --New York Times Book Review, Editors’ Choice

The hidden history of the pocket calculator--a device that ushered in modern mathematics, helped build the atomic bomb, and went with us to the moon--and the mathematicians, designers, and inventors who brought it to life.