|
Notation |
Interval |
Type |
|---|---|---|
|
(-1,1) |
-1 < x £ 1 |
half-open |
|
(-∞,63) |
x < 63 |
infinite |
|
(2.5,4.9) |
2.5 < x < 4.9 |
Open |
|
[0,100] |
0 £ x £ 100 |
closed |
|
(-∞,∞) |
∞ < x < ∞ |
infinite |
- 瀏覽次數：909
