| assignment/2 | Solve assignment problem |
| constraint/3 | Add linear constraint to state |
| constraint/4 | Add named linear constraint to state |
| constraint_add/4 | Extend a named constraint |
| gen_state/1 | Create empty linear program |
| maximize/3 | Maximize objective function in to linear constraints |
| minimize/3 | Minimize objective function in to linear constraints |
| objective/2 | Fetch value of objective function |
| shadow_price/3 | Fetch shadow price in solved state |
| transportation/4 | Solve transportation problem |
| variable_value/3 | Fetch value of variable in solved state |