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Simpson's First Rule - Area Integrator

Compute area under a curve sampled at three equally-spaced ordinates using Simpson's first rule - the building block for every naval-architecture volume, area and centroid integration.

SimpsonIntegrationNaval Arch
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Formula, assumptions, and limits

A=h3(y0+4y1+y2)A = \frac{h}{3}(y_0 + 4y_1 + y_2)
SymbolMeaningUnit
yiy_iOrdinate at station im
hhCommon intervalm

Source: Bowditch Pub. 9 - Chap. 10; K.J. Rawson & E.C. Tupper - Basic Ship Theory Vol. 1

In short

Compute area under a curve sampled at three equally-spaced ordinates using Simpson's first rule - the building block for every naval-architecture volume, area and centroid integration.

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