subset

大学

n. 子集 [计] 子集; 子设备

发音

US
UK /ˈsʌbˌsɛt/

词形变化

subsets 复数 subsets subsets 三单 subsetting subsetting 现在分词 subsetted 过去式 subsetted 过去分词

教材释义与例句

名词

子集；子设备；小团体

释义与例句

n.
  1. 1.

    A set A such that every element of A is also an element of S.

    子集

    数学

    The set of integers is a subset of the set of real numbers.

    The set #92;lbracea,b#92;rbrace is a both a subset and a proper subset of #92;lbracea,b,c#92;rbrace while the set #92;lbracea,b,c#92;rbrace is a subset of #92;lbracea,b,c#92;rbrace but not a proper subset of #92;lbracea,b,c#92;rbrace.

    1963, David B. MacNeil, Modern Mathematics for the Practical Man, David Van Nostrand, Republished as 2013, David B. MacNeil, Fundamentals of Modern Mathematics: A Practical Review, Dover, page 3, In the foregoing example, the set D of the first four letters of the alphabet, was a subset of the set A of all the letters of the alphabet, because A includes all the members of D.

  2. 2.

    A group of things or people, all of which are in a specified larger group.

    We asked a subset of the population of the town for their opinion.

v.
  1. 1.

    To take a subset of.

    及物
  2. 2.

    To extract only the portions of (a font) that are needed to display a particular document.

    及物 计算机 工程 数学 媒体 印刷

词汇关系

名词

上位词 1

set

相关短语

subset classifier subset classifiers proper subset [计] 真子集 multiplicative subset

词源

From sub- + set.

来源：wiktionary