Variables are sometimes called decision variables and are non-negative Theorem 1: Let R be the feasible region (convex polygon) for a linear programming problem and let Z = ax + by be the ...

Two Variables: Graphical Solution For cases like the one we have here, where there are just two decision variables, there is a quick and easy solution method. This method involves graphical ...

The scholar developed linear programming -- in essence, a decision-support tool that is ideal for resource allocation -- while working for the Defense Department after World War II.