noun
difference engine
Historical mechanical calculator designed by Charles Babbage. Rare term; primarily encountered in history of computing contexts.
バベッジの差機関は、階差法を用いて多項式の数表を計算する機械だった。
Babbage's difference engine was a machine that calculated polynomial tables using the method of finite differences.
Compound of 差 (difference) and 機関 (engine, mechanism), a direct translation of the English term 'difference engine'.