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单词 summatory
释义 ˈsummatory, a. Obs. rare.
[ad. mod.L. summātōrius, f. med.L. summāt-: see summate and -ory.]
summatory arithmetic, summatory calculus: see quots.
1704C. Hayes Treat. Fluxions 60 The fundamental Rule in Summatory Arithmetick, to find the Flowing Quantity of a given Fluxion.1710J. Harris Lex. Techn. II, Summatory Calculus, according to some, is the same with the Calculus Differentialis of Leibnitz; but more properly Summatory Arithmetick, is the Art of finding the flowing Quantity, from the Fluxion.
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