Paul J. Nahin is the author of many popular math books, including How to Fall Slower Than Gravity, Dr. Euler's Fabulous Formula, and An Imaginary Tale (all Princeton). He is professor emeritus of electrical engineering at the University of New Hampshire and received the 2017 Chandler Davis Prize for Excellence in Expository Writing in Mathematics. He lives in Exeter, New Hampshire.
Nahin's style is entertaining, directly addressing his readers. . . . Highly recommended. ---Adhemar Bultheel, MAA Reviews This book will be both enjoyable and a rich source of useful as well as intriguing information to a wide range of readers. ---Michael Th. Rassias, zbMATH Open I thoroughly enjoyed this book! ---Jonathan Shock, Mathemafrica.org