What is the difference between an iterative method of problem solving and a direct method of problem solving?

An iterative method generates a sequence of improving approximate solutions while a direct method solves the problem by a finite sequence of oper Iterative methods become more expensive when the problem becomes larger is size, unlike direct methods.

An iterative method always provides a solution, and it is always an improvement over solutions by direct methods.

A direct method always takes shorter to get the solution, unlike an iterative method.