Functions of One Variable

Functions are essential in nearly all areas of mathematics, especially in economics. Concepts like demand, supply, cost, and production are all described using functions. While economics courses may refer to “curves,” these are simply visual representations of underlying mathematical relationships. In this chapter, we focus on functions of one real variable. Understanding functions is crucial for analyzing and modeling economic behavior—skills that are central to both Econometrics, Operations Research, and Data Science.

This section is based on Chapter 4 of Essential Mathematics for Economic Analysis.