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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §5.8 Numerical Integration, #16 · Calculus · Integrals

For the periodic function … from … to …, compare … and…

For the periodic function $y (x) = 1/ (2 + cos 6 π x)$ from $- 1$ to $1$ , compare $T$ and $S$ and $G$ for $n = 2$ .

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §5.8 Numerical Integration, #16

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