| 单词 | cumulative sum | 
| 释义 | > as lemmascumulative sum   cumulative sum  n. 		 (a) the aggregate or total amount of something, the sum total;		 (b) Mathematics a partial sum of terms of a given sequence. ΚΠ 1853    Morning Post 18 Aug. 2/2  				The cases in which the payment of the penny is made in separate and isolated, instead of cumulative sums, present greater difficulty. 1928    Jrnl. Amer. Statist. Assoc. 23 123  				The movement of the cumulative sum of the xy products shows the trend in the degree of concurrence. 1956    Times 7 Dec. 9/5  				Britain had already made available a cumulative sum of about £86m. in grants since 1951. 1995    Jrnl. Appl. Econometrics 10 105  				Table II presents the Phillips–Ouliaris bounds tests for convergence and the cumulative sums of the eigenvalues. 2012    Oecologia 168 705/1  				The thermal sum is the cumulative sum of daily mean temperatures exceeding +5°C from the beginning of March. < as lemmas | 
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