Discontinuity, and this is, of course, a point or removable discontinuity. And so how does this relate to limits? Well, here, the left and right-handed limits exist, but they're not the same thing, so you don't have a two-sided limit. So for example, for this one in particular, but for all the x values up to and including x equals two, this is the graph of y equals x squared, and then for x greater than two, it's the graph of square root of x. So in this scenario, if you were to take the limit of f of x as x approaches two from the left, from the left, this is going to be equal to four. You're approaching this value, and that actually is the value of the function, but if you were to take the limit as x approaches two from the right of f of x, what is that going to be equal to? Well, we're approaching from the right, this is actually the square root of x, so it's approaching the square root of two.