I am having difficulty approximating the solution for y' = x^2 using the RK4 method. For some reason, I don't understand how to go about the method for equations such as this one, although it seems more straight forward when there are two clear variable in the equation (ex: x^2 + e^y). Anyway, if someone could show me how to approximate y' = x^2 with the RK4 method, that would be highly appreciated. The more work shown, the better off I would be (because I am truly confused by this.) Thank you very much for your time.