File talk:RandLintegrals.png
Maybe that this figure is not completely correct in the lebesgue part (in red).
By definition the lebesgue integral of a function is the sum of different y times the lebesgue measure of x-es such that f(x)=y. In the figure it is suggested that is not y but a delta of y.
--Nicolaennio 21:19, 9 September 2007 (UTC)