论文部分内容阅读
数学符号用英文怎么表述——你都知道吗?可千万别再“The equation is like this...”,“The value is like this...”……真是要多尴尬有多尴尬了!rn1.Sets(集合)rnx∈A x belongs to A/x is an element (or a member) of Arnx(∈)A x does not belong to A/x is not an element (or a member) of ArnACB A is contained in B/A is a subset of BrnA(D)B A contains B/B is a subset of ArnA∩B AcapB/AmeetB/Aintersection BrnA ∪ B A cup B/A join B/A union B