PROC OPTMODEL provides a language for concisely modeling linear programming problems. The language allows a model to be expressed in a form that matches the mathematical formulation. Within OPTMODEL you can declare a model, pass it directly to various solvers, and review the solver result. You can also save an instance of a linear model in data set form for use by PROC OPTLP. For more details, refer to Chapter 8, The OPTMODEL Procedure.