Of what use is mathematics? Hasn’t everything in mathematics already been disc- ered? Thesearenaturalquestionsoftenaskedbyundergraduates. Theanswersprovided by their professors are often quite brief. Most university courses, pressed for time and rigidly structured, o?er little opportunity to present and study actual applications and real-world examples. Evenmorehigh-schoolstudentsaskthesamequestionswithmoreinsistence. Tea- ers in these schools generally work under even tighter constraints than university prof- sors. If they are able to competently respond to these questions it is probably because they received good answers from their teachers and professors. And if they do not have the answers, then whose fault is it? The genesis of this text It is impossible to introduce this text without ?rst discussing the course in which it originated. The course “Mathematics and Technology” was created at the Universit´ e de Montr´ eal and taught for the ?rst time in the winter semester of 2001. It was created after observing that most courses in the department neglect to present real applications. Sinceitscreationthecoursehasbeenopentobothundergraduatemathematicsstudents and future high-school teachers. Since no appropriate text or manual for the course we envisioned existed, we were led to write our own course notes, from which we taught. We got so caught up in writing these notes that they quickly grew to the size of a textbook, containing much more material than could possibly be taught in one semester. Despite the two of us being career mathematicians, we must admit that we both knew little or nothing about most of the applications presented in the following chapters.

From the reviews:

"Christiane Rousseau and Yvan Saint-Aubin here present a valuable collection of diverse and detailed applied mathematics examples. … presented to work as a standalone guide to mathematics at work today, usable for self-study and enlightenment or as a text for coursework. … Chapters conclude with a rich collection of exercises followed by references for further study. … together with the clear signposts to help students get around and through the more difficult topics, make Mathematics and Technology suitable for any diligent reader … ." (Tom Schulte, MAA Online, February, 2009)

"This book takes a more detailed view of mathematics in action, in several areas of technology … . This is an excellent book for a varied audience. … This book will also be attractive to college students … and to researchers in mathematics, computer science (CS), and technology, who want to acquire a more thorough understanding of the applications covered in the book. … the authors give several pointers and suggestions to instructors. … I like this book and I recommend it." (Edgar R. Chavez, ACM Computing Reviews, June, 2009)

“The authors highlight how mathematical modeling, together with the power of mathematical tools, has been crucial for innovation in technology. … The text is written for students who have a familiarity with Euclidean geometry and have mastered multivariable calculus, linear algebra, and elementary probability theory. … undergraduates in their junior or senior years are the ideal audience for the course.” (Tzvetan Semerdjiev, Zentralblatt MATH, Vol. 1211, 2011)