2002 | OriginalPaper | Buchkapitel
Applications of integrals
verfasst von : Dr. Adi Ben-Israel, Dr. Robert Gilbert
Erschienen in: Computer-Supported Calculus
Verlag: Springer Vienna
Enthalten in: Professional Book Archive
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What do area, length, volume, work, and hydrostatic force have in common? All of these (and many other important concepts in science and engineering) can be modelled as Riemann sums (8.6) $$\sum\limits_{k = 1}^n {f\left( {{\xi _k}} \right)} {\rm{ }}\Delta {x_k},$$ and computed as integrals (8.28), $$\int\limits_{a}^{b} {f(x)dx: = \mathop{{\lim }}\limits_{{\parallel \mathcal{P}\parallel \to 0}} } \sum\limits_{{k = 1}}^{n} {f({{\xi }_{k}})\Delta {{x}_{k}}.}$$ In this chapter integrals are applied to problems of computing areas (Sects. 11.1, 11.2, and 11.6), arc lengths (Sect. 11.3), volumes (Sects. 11.4 and 11.5), moments and centroids (Sects. 11.7 and 11.8), work (Sect. 11.9), and hydrostatic force (Sect. 11.10).