(computer science) steepest descent method

(of aircraft) nosedive; descent at a steep angle; plunge

(of aircraft) to nosedive; to descend at a steep angle; to plunge

optimization

to optimize

untie; unravel; undo (a fastening); unwrap / dispel (doubts); clear up (a matter)

solve (a problem); answer (a question); unravel (a riddle) / comb; untangle (hair)

way; method; manner

optimal, most appropriate, best suited

the best, the optimum