Her interested in science and mathematics led her around 1840 to study the Difference Engine.
الإنجليزية - الإنجليزية
تعريف difference engine في الإنجليزية الإنجليزية القاموس.
A mechanical special-purpose computer used to generate tables of values of polynomials
A difference engine is a special-purpose mechanical digital calculator, designed to tabulate polynomial functions. Since logarithmic and trigonometric functions can be approximated by polynomials, such a machine is more general than it appears at first