DLMF:3.5.E15 (Q1253)

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DLMF:3.5.E15
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    a b f ( x ) w ( x ) d x = k = 1 n w k f ( x k ) + E n ( f ) , superscript subscript 𝑎 𝑏 𝑓 𝑥 𝑤 𝑥 𝑥 superscript subscript 𝑘 1 𝑛 subscript 𝑤 𝑘 𝑓 subscript 𝑥 𝑘 subscript 𝐸 𝑛 𝑓 {\displaystyle{\displaystyle\int_{a}^{b}f(x)w(x)\mathrm{d}x=\sum_{k=1}^{n}w_{k% }f(x_{k})+E_{n}(f),}}
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    d x 𝑥 {\displaystyle{\displaystyle\mathrm{d}\NVar{x}}}
    C1.S4.SS4.m1agdec
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