And let's see, we want to redefine, okay, so we want to see, so we can go to the original screen of the solver. And actually, I did this in the previous problem, although we redefined y sub one. But you say, okay, when does zero equal y sub one? Or when does y sub one, that's this here, equal zero? And so you press enter. And then we can put in an initial guess. This looks someplace in between zero and two.