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< 20.5 Summary and Problems | Contents | 21.1 Numerical Integration Problem Statement >

Chapter 21. Numerical Integration


The integral of a function is normally described as the “area under the curve.” In engineering and science, the integral has many applications for modeling, predicting, and understanding physical systems. However in practice, finding an exact solution for the integral of a function is difficult or impossible.

This chapter describes several methods of numerically integrating functions. By the end of this chapter, you should understand these methods, how they are derived, their geometric interpretation, and their accuracy.