“Is this something that I might regret(Come on come on)Novthing ventured nothing gained(You are the one)A lonely heart that can t be tamed(Come on come on)I m hoping that you feel the sameThis is something that I can t forget”啊啊啊,怎么还不接我电话,恼火。
“设{Xn}为实数列,a 为定数.若对任给的正数ε,总存在正整数N,使得当 n>N 时有∣Xn-a∣<ε则称数列{Xn}收敛于a,定数 a 称为数列{Xn}的极限,并记作,或Xn→a(n→∞)读作【当 n 趋于无穷大时,{Xn}的极限等于或趋于 a】若数列{Xn}没有极限,则称{Xn}不收敛,或称{Xn}为发散数列.该定义常称为数列极限的ε—N定义.对于收敛数列有以下两个基本性质,即收敛数列的唯一性和有界性。”谁来救我,要出人命啦!%>_<%我决定给扶苏打电话。