In an infinitesimal manner. / To an infinitesimal degree.

plural of infinitesimal

(mathematics) A non-zero quantity whose magnitude is smaller than any positive number (by definition it is not a real number).

Incalculably, exceedingly, or immeasurably minute; vanishingly small. / (mathematics) Of or pertaining to values that approach zero as a limit. / (informal) Very small.

The quality of being infinitesimal.

The quality of being infinitesimal.

(mathematics) conversion or extension to infinitesimal form

plural of infinitesimalization

(calculus) Differential calculus and integral calculus considered together as a single subject.

(archaic, calculus) calculus / (mathematics, mathematical analysis) a systematic employment of infinitesimals that reduces calculus to algebra; nonstandard analysis.