But sometimes they aren't the same. This will not necessarily be true if you're dealing with some function that has a point discontinuity like that, or a jump discontinuity, or a function that looks like this. This would not necessarily be the case. But if at that point you're trying to find the limit towards the, if as you approach this point right over here, the function is continuous, it's behaving somewhat normally, then this is a good thing to keep in mind. You could just say, hey, can I just evaluate the function at that, at that a over there? So in general, if you're dealing with pretty plain vanilla functions like an x squared, or if you're dealing with rational expressions like this, or trigonometric expressions, and if you're able to just evaluate the function, and it gives you a real number, you are probably done. If you're dealing with some type of a function that has all sorts of special cases, and it's piecewise defined, as we've seen in previous other videos, I would be a little bit more skeptical.