Precalculus:A Unit Circle Approach - Tapa dura

Ratti and McWaters have combined years of lecture notes and firsthand experience with students to bring you a text series that teaches at the same level and in the style that you do. An extensive array of exercises and learning aids further complements your instruction in class and during office hours. In addition to all of the standard features of the other books in the Ratti/McWaters series, this edition offers a faster pace and includes more rigorous topics ideal for students going into calculus.

J.S.Ratti has been teaching mathematics at all levels for over 35 years. He is currently a full professor of mathematics and director of the "Center for Mathematical Services" at the University of South Florida. Professor Ratti is the author of numerous research papers in analysis, graph theory, and probability. He has won several awards for excellence in undergraduate teaching at University of South Florida and known as the coauthor of a successful finite mathematics textbook. Marcus McWaters is currently the chair of the Mathematics Department at the University of South Florida, a position he has held for the last eleven years. Since receiving his PhD in mathematics from the University of Florida, he has taught all levels of undergraduate and graduate courses, with class sizes ranging from 3 to 250. As chair, he has worked intensively to structure a course delivery system for lower level courses that would improve the low retention rate these courses experience across the country. When not involved with mathematics or administrative activity, he enjoys playing racquetball, spending time with his two daughters, and traveling the world with his wife.