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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §5.3 Summation versus Integration, #23 · Calculus · Integrals

Add … to the table for … and find the relative error…

Add $n = 400$ to the table for $S_{n} = 1 + \dots + n$ and find the
relative error $E_{n}$ . Guess and prove a formula for $E_{n}$ .

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §5.3 Summation versus Integration, #23

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