سوال ۲۴ کنکور ارشد ریاضی ۱۴۰۲

PASSAGE 3 (excerpt):

"The least amount of computation, measured in evaluations of the right-hand side of the differential equation, is required by the multistep methods. In a predictor method the right-hand side of the differential equation must be evaluated only once per step, while in a corrector method this number is equal to the (generally small) number of iterations. The expense caused by the step control in multistep methods, however, destroys this advantage to a large extent. Multistep methods have the largest amount of overhead time."

In a multistep method, prediction ----------.