relative complement of a set

例句：

1. 1. The relative complementof a set is the smallest positive integerthat can be added to the set withoutexceeding its cardinality.
   集合的相对补数是最小的正整数，可以加到集合中而不超出其基数。
2. 2.In mathematics, the relative complementof a set is often used to definethe cardinality of a set.
   在数学中，相对补数通常用于定义集合的基数。
3. 3. The relative complement of aset is also used in computer science todetermine the maximum size of a data structurethat can be stored in memory.
   相对补数也在计算机科学中用于确定可以在内存中存储的最大数据结构大小。