Probably not worth the effort on such a small system.
They specifically target large systems, because their approach (I think) iteratively approximates the matrix, then uses the solution of each simpler version as the initial guess to the solution of the next closest one to the original.
Presumably all that overhead pays off in the long run, but not on small systems.
Comments
I'm terribly sorry if this is an ignorant question but does this somehow apply to manually solving a, say, 5x5?
Probably not worth the effort on such a small system.
They specifically target large systems, because their approach (I think) iteratively approximates the matrix, then uses the solution of each simpler version as the initial guess to the solution of the next closest one to the original.
Presumably all that overhead pays off in the long run, but not on small systems.