# Help for understanging Limit

1. Sep 28, 2007

### indra00

please guys! some one plz help me understand the epsilon-delta definition of limit and the delta nbd concept.

2. Sep 28, 2007

### EnumaElish

What have you been taught so far?

3. Oct 2, 2007

### Johan de Vries

It's actually very simple. What does it intuitively mean when we say that $$\lim_{x\to p}f(x)=y$$? It means that if you let x approach p then f(x) will approach y. How to see if that is really the case? Well, if the function f is really going to get closer and closer to y if you let x appoach p closer and closer, then it should be the case that if you specify some small interval $$\delta$$ containing y you can find an interval around p of length $$\epsilon$$ such that the function f will map that interval within that deviation, no matter how small you make $$\delta$$.