Numerical Integration using Rectangles, the Trapezoidal Rule, or Simpson's Rule

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This Demonstration compares the results of integration of several elementary functions using three methods. The exact value is the best approximation as computed by Mathematica, contrary to the approximate value computed with the method selected from the buttons.

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Simpson's method works only with odd number of points; the other two methods require at least two points.

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Contributed by: Bartosz Naskrecki (March 2011)
Open content licensed under CC BY-NC-SA


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