Limit

A limit describes the value that a function or sequence approaches as the input gets closer to a specific point. Instead of focusing on the exact value at that point, it considers how the function behaves near it. For example, as you get closer to a certain number, the output might approach a particular value. Limits help us understand and analyze functions' behavior near specific points, even if the function isn’t defined exactly there. They’re a fundamental concept in calculus, used to study change, continuity, and rates of variation.