Читать книгу Mathematical Programming for Power Systems Operation - Alejandro Garcés Ruiz - Страница 34
Example 2.3
ОглавлениеTable 2.1 shows some examples of maximum, minimum, supreme, and infimum.
Table 2.1. Bounds of some ordered sets.
| Set | sup | max | inf | min |
|---|---|---|---|---|
| Ω1 = {1, 2, 3, 4} | 4 | 4 | 1 | 1 |
| Ω2 = {x ∈ : 1 ≤ x ≤ 2} | 2 | 2 | 1 | 1 |
| Ω3 = {x ∈ : 3 < x ≤ 8} | 8 | 8 | 3 | - |
| Ω4 = {x ∈ : 2 ≤ x < 9} | 9 | - | 2 | 2 |
| Ω5 = {x ∈ : 4 < x < 7} | 7 | - | 4 | - |
