Optimization Using the General Algebraic Modeling System (GAMS)

This chapter is a practical guide designed to help students learn and effectively use GAMS (General Algebraic Modeling System). GAMS is an algebraic modeling language widely used in mathematical optimization and decision-making. The chapter begins with an introduction to the basic concepts of GAMS, presenting its syntax and structure. Afterward, the fundamental parts of a GAMS program are explored, including the declaration of sets, variables, parameters, and constraints. The different structures that allow for more efficient programming in GAMS are explained in detail along with practical, simple examples presented, and with techniques for optimizing and solving these models are shown.