基本释义:

左上极限

网络释义

1)LUE Left Upper Extremity,左上极限

2)left limit,左极限

3)right or left limits,左(右)极限

4)left-right limit,左、右极限

5)left side limit value,左极限值

6)left hand limit,左方极限

用法和例句

In this paper,it is discussed that piecewise function can also be judged by left-right limit of derived function in pision-point s left-right field existing even being equal or not if it is continuous in pision-point.

分段函数在分界点处的导数的计算,一般都要求用左、右导数定义及可导的充要条件去判定,本文讨论了分段函数在分界点连续的前提下,也可利用分界点左、右邻域内导函数的左、右极限是否存在且相等来判定,在一定条件下使求导运算更加快捷方便,并从几何上给出了进一步的阐述。