## Calculus (3rd Edition)

Yes, as an example $$f(x)=\frac{x^2-1}{x^2-x}$$ is not defined at $x=1$; however, $$\lim\limits_{x \to 1}\frac{x^2-1}{x^2-x}=\lim\limits_{x \to 1}\frac{x+1}{x}=2.$$