Traditional Culture Encyclopedia - Traditional stories - What are the five ways of set operation?
What are the five ways of set operation?
(1) intersection: In set theory, let A and B be two sets, and the set composed of all elements belonging to set A and set B is called the intersection of set A and set B, and marked as A ∩ B.
(2) Union: Given two sets A and B, the set consisting of all their elements is called the union of set A and set B, marked as A∪B, and pronounced as A and B..
(3) Relative Complement Set: If A and B? It's a set, and then a. In b? A relative complement set in is a set whose elements belong to B but not to A, B? -? Answer? = {x| x∈B and x? Answer.
(4) Absolute Complement Set: If the complete set U is given, is there a? U, then the relative complement set of A in U is called the absolute complement set of A (or simply the complement set). UA .
(5) Subset: Subset is a mathematical concept: if any element of set A is an element of set B, then set A is called a subset of set B ... Symbolic language: What if? A∈A, there are all a∈B, what about A? B.
- Related articles
- What is the security situation of China's geopolitical environment now?
- Does Italian style decorating look good? Italian style decoration characteristics of the introduction
- China folk culture
- Vietnamese traditional raw fish
- What ingredients can Hefei crayfish dip in?
- What are the manners and ways of meeting people in different countries?
- Which region is famous for its specialty bamboo weaving
- What are the ways to cultivate students' feelings about home and country?
- Reasons for the Early Major Development of Traditional Manufacturing Industry in Jiangsu Province
- A reasonable explanation of [ghost]