One objective is to minimize the following function:
Another objective is to minimize the following function:
![\[ \Variable{TotalCost} = \sum _{(i,j) \in \text {ARCS}} \Argument{cost[i,j]} \cdot \Variable{Flow[i,j]} \]](images/ormpex_ex190010.png){kind=small}
![\[ \Variable{NonpreferredFlow} = \sum _{\substack{(i,j) \in \text {ARCS} \setminus \text {PREFERRED\_ ARCS}:\\ j \in \text {CUSTOMERS\_ WITH\_ PREFERENCES}}} \Variable{Flow[i,j]} \]](images/ormpex_ex190011.png){kind=small}