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Lebesgue Sum


 S_n=sum_(i)eta_imu(E_i),

where mu(E_i) is the measure of the set E_i of points on the x-axis for which f(x) approx eta_i.


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Cite this as:

Weisstein, Eric W. "Lebesgue Sum." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/LebesgueSum.html

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