"Functions-A Fundamental Concept in Calculus" is a comprehensive resource that explores the core concept of functions in calculus. The book covers topics such as function types, graphs, and operations, with detailed explanations and examples. With a focus on conceptual understanding, this book helps students develop a strong foundation in calculus. Practice problems and exercises reinforce learning, making it an excellent resource for students seeking to master functions and calculus. Well-structured and thorough, ideal for calculus students.