Smith designed this broad-based survey of mathematics with the idea that all students will need competence in essential areas of mathematics to function in our technological world. This edition marks the 20th anniversary of Smiths leading liberal arts textbook. Not content to rest on its history, this major revision now includes a great deal of new material and many new features. In addition to including the great ideas of mathematics, the 7th Edition also includes new material on estimation, precision, accuracy, and most of all, problem solving.