| 释义 |
end‐point A number defining one end of an interval on the real line. Each of the bounded intervals [a, b], (a, b), [a, b) and (a, b] has two end‐points, a and b. Each of the unbounded intervals [a, ∞), (a, ∞), (−∞, a], and (−∞, a) has one end‐point, a.
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