Constraints :: SAS/OR(R) 13.1 User's Guide: Mathematical Programming Examples

The following constraints are used in this example:

bounds on variables
for $i \in \text {NODES}$ ,

$\sum _{(i,j) \in \text {ARCS}} \Variable{Flow[i,j]} - \sum _{(j,i) \in \text {ARCS}} \Variable{Flow[j,i]} \le \Argument{supply[i]}$
for $i \in \text {DEPOTS}$ ,

$\sum _{(i,j) \in \text {ARCS}} \Variable{Flow[i,j]} \le \Argument{throughput[i]}$
$\displaystyle { \Variable{NonpreferredFlow} \le \Argument{NonpreferredFlow.sol} }$