522 Continuous
by EngliSea on 2020-07-15
f is continuous at c if and only if for every ε>0 there exists δ>0 such that |x−c|<δ ⇒ |f(x)−f(c)|<ε.
┆｢f(x) Ƚx￫c｣ = f(c)┆
