摘要
列举了数学分析中上、下极限的三种常见定义,利用两边夹等定理证明了它们的等价性.对上、下极限及相关内容的教学做了初步探讨.
In this paper, three kinds of definitions of upper and lower limits are enumerated. Moreover, equivalent proof of these definitions is presented.On teaching of upper and lower limits and related content, we conducted a preliminary study.
出处
《山西大同大学学报（自然科学版）》
2009年第6期9-10,43,共3页
Journal of Shanxi Datong University(Natural Science Edition)
关键词
上
下极限
聚点上
下确界教学
upper and lower limits
point of accumulation
supremum infimum
teaching
