Thomas’ Calculus: Early Transcendentals, Thirteenth Edition, provides a modern intro­duction to calculus that focuses on conceptual understanding in developing the essential elements of a traditional course. This material supports a three-semester or four-quarter calculus sequence typically taken by students in mathematics, engineering, and the natural sciences. Precise explanations, thoughtfully chosen examples, superior figures, and time- tested exercise sets are the foundation of this text. We continue to improve this text in keeping with shifts in…