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Simpson's rule

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simpson

Main Entry:: Simp·son's rule
Pronunciation:: \ˈsim(p)-sənz-\
Function:: noun
Etymology:: Thomas Simpson †1761 English mathematician
Date:: circa 1875

: a method for approximating the area under a curve over a given interval that involves partitioning the interval by an odd number n + 1 of equally spaced ordinates and adding the areas of the n/2 figures formed by pairs of successive odd-numbered ordinates and the parabolas which they determine with their included even-numbered ordinates

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