[Calculus] Definition of Limit
Definition of Limit$\lim_{x\rightarrow a}f(x)=L$ ์ ์์ฒ๋ผ ๋ํ๋๋ ๊ทนํ์ ๋ค์๊ณผ ๊ฐ์ ์ก์ค๋ก -๋ธํ ์ ์๋ก ํํํ ์ ์๋ค. If and only if for all $\varepsilon>0$, there exists $\delta>0$, such that $0 ์ข๊ทนํ๊ณผ ์ฐ๊ทนํ์ ์ ์์ฐธ๊ณ ๋ก, ์ฐ๊ทนํ๊ณผ ์ข๊ทนํ์ ๋ค์๊ณผ ๊ฐ์ด ์ ์๋๋ค.$\lim_{x\rightarrow a^+}f(x)=L$If and only if for all $\varepsilon>0$, there exists $\delta>0$, such that $a $\lim_{x\rightarrow a^-}f(x)=L$If and only if for all $\varepsilon>0$, there exi..