This text is designed for a three-semester or four-quarter calculus course (math, engineering, and science majors). Calculus hasn’t changed, but your students have. They have been raised on technology, immediacy, and the desire for relevance, and they come to calculus with varied mathematical backgrounds. Thomas’ Calculus, Twelfth Edition, helps you reach today’s students by developing conceptual understanding while maintaining a consistent level of rigor; offering the right mix of relevant applications, conceptual exercises, and skills practice; and incorporating current learning and teaching technology. This significant revision features more examples, more mid-level exercises, more figures, improved conceptual flow, and increased clarity and precision. The text is available with a robust MyMathLab^™ course–an online homework, tutorial, and study solution designed for today’s students. In addition to interactive multimedia features like Java^™ applets and animations, thousands of MathXL^® exercises are available for students to get the practice they need.