For simple adder/multiplier type circuits analog computers are inferior to digital ones for most uses because of the additive error factor that accumulates over

For simple adder/multiplier type circuits analog computers are inferior to digital ones for most uses because of the additive error factor that accumulates over every iteration of a loop. I imagine that there are some analog circuits that would directly solve complex polynomials or perhaps differential equations without iteration, which would not suffer the error amplification problem. I don't know how common the equations or systems that those circuits solve for are in most scientific or other application use.