Upper Real - bounded below中文 - real limits中文

Real Life Global Upper Intermediate Students Book

Real Life: British English | 5 Levels | A1 - C1 Breathe new life into your classroom through practical tasks and thought-provoking topics.

Upper topology

A real function on a topological space is upper semi-continuous if and only if it is lower-continuous, i.e. is continuous with respect to the lower topology on 

●使得一组数据易于理解→图和表

每个分数有两个精确界限, 一个在区间的顶端，称为精确上限. （upper real limit）, 另一个在区间的底端，称为精确下限（lower real limit）. ○ 注意一个区间的精确 13 頁

Chapter 2 Frequency Distributions 次數分配

20 Apparent limit Lower real limit Upper real limit. Apparent limit Lower real limit Upper real limit. 21 Exercise 30位學生體重 N=30. Exercise 

2.2 Frequency Distributions

The real limits of the “20 –. 30” interval are 19.5 and 30.5. The real lower limit is designated L and the real upper limit is designated U. The Midpoint, MP 13 頁

實數系

top. 定義: upper bound. 令S 為一ordered set. E S. 如果存在u S, 使得x u, x E, 則稱u 為E 的一個上界(upper bound);. 且稱E 為有上界(E is bounded above). 定義