这是文组的考题咧
let f be a function on an open interval containing
c(except possibly at c)and let L be a real number.
the statement
lim f(x) = L
x->c
means that for each ε>0 there exists a δ>0 such that if
0<|x-c|<δ , then |f(x)-L|<ε
※ 引述《e1608 (silentness)》之铭言:
: 安安 你好
: 因为平常都没去上课
: 现在在抱佛脚
: 极限是什么啊?有懒人包吗?
: 为什么有人说微积分不难??