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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §5.8 Numerical Integration, #22 · Calculus · Integrals

Calculate … with ten intervals from 0 to 5 and 0 to…

Calculate $\int e^{- x^{2}} d x$ with ten intervals from 0 to 5 and 0 to 20 and 0 to 400. The integral from 0 to $\infty$ is $\frac{1}{2} π$ . What is the best point to chop off the infinite integral?

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §5.8 Numerical Integration, #22

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