âThe Cask of Amontilladoâ (1846) Summary. The narrator, Montresor, opens the story by stating that he has been irreparably insulted by his acquaintance, Fortunato, and that he seeks revenge. He wants to exact this revenge, however, in a measured way, without placing himself at risk. He decides to use Fortunatoâs fondness for wine against him.
The first, which shows that the limit DOES exist, is if the graph has a hole in the line, with a point for that value of x on a different value of y. If this happens, then the limit exists, though it has a different value for the function than the value for the limit. Please click on the image for a better understanding.
The limit of a function. We have defined the limit of a variable, but what we often have is a function of a variable -- which is itself a variable. y = f(x) = x2. Now, a sequence of values of x, the independent variable, will cause a sequence of values of f(x), the dependent variable.