DLMF:3.5.E15 (Q1253)

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DLMF:3.5.E15
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    Defining formula
    ∫ 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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    DLMF id
    DLMF:3.5.E15
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