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1: 1.4 Calculus of One Variable

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1.4.23_3 $${\int }_a^{b}f(x)d\alpha (x)={\int }_a^{b}w(x)f(x)dx+\sum _{n=1}^N{w}_{n}f(x_n).$$

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Symbols:

$dx$: differential of $x$ , $\int$: integral, $n$: nonnegative integer and $w(x)$: weight function

Referenced by:

§1.4(v), Erratum (V1.2.0) §1.4

Permalink:

http://dlmf.nist.gov/1.4.E23_3

Encodings:

pMML, png, TeX

Addition (effective with 1.2.0):

This equation was added.

See also:

Annotations for §1.4(v), §1.4(v), §1.4 and Ch.1

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