He called the waiter and ordered another pair of drinks.
他叫来服务员, 又要了两杯酒。
单词 | Ordered pair |
释义 |
Ordered pair
原声例句
漫长的告别(上) He called the waiter and ordered another pair of drinks. 他叫来服务员, 又要了两杯酒。 综合英语(一) Once, when his father was still alive, a young lady ordered a pair of red shoes. 有一次,当他的父亲还在世时,一位年轻的女士订购了一双红鞋。 哈利波特与凤凰社 " I think we might have a record of it if someone had ordered a pair of Dementors to go strolling through Little Whinging! " barked Fudge. “我想,如果有人命令两个摄魂怪在小惠金区大摇大摆地溜达,我们应该会有记录的!”福吉粗声吼道。
中文百科
有序对在数学中,有序对是两个对象的搜集,使得可以区分出其中一个是“第一个元素”而另一个是“第二个元素”(第一个元素和第二个元素也叫做左投影和右投影)。带有第一个元素 a 和第二个元素 b 的有序对通常写为 (a, b)。 符号 (a, b) 也表示在实数轴上的开区间;在有歧义的场合可使用符号
英语百科
Ordered pair 有序对In mathematics, an ordered pair (a, b) is a pair of mathematical objects. The order in which the objects appear in the pair is significant: the ordered pair (a, b) is different from the ordered pair (b, a) unless a = b. (In contrast, the unordered pair {a, b} equals the unordered pair {b, a}.) |
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