differential in Polish

Of or pertaining to a difference.

(mathematics) Of or pertaining to differentiation or the differential calculus.

(calculus) A quantity representing an infinitesimal change in a variable, now only used as a heuristic aid except in nonstandard analysis but considered rigorous until the 20th century; a fluxion in Newtonian calculus, now usually written in Leibniz's notation as \operatorname{d}\!x.