| Charnes and Kooper | Bitran and Novae | Swarup | Our Method | |
| EN | 1 iteration and inconsistent | 1st LP-2 iterations 2nd LP-2 iterations | 2 iterations with clumsy calculations of LFP | 2 iterations with easy calculations of LP |
| EP | 2 iterations in Phase I 1 iterations in Phase II | |||