作者kahuna (开心鬼期待Friday)
站内NTUMath92
标题[问题] 请问极限正式定义
时间Sun Nov 23 16:34:54 2003
我的课本只有一段 formally, limits are defined as follows:
lim f(x)=L if for every number e > 0
x-c
there is a number t > 0 such that |f(x)-L|< e whenever 0 <|x-c|< t
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