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  • October 30, 2023 at 11:10 am #9767
    davide.a
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    We can define the 1(r) function which is 1 if r is in a set of points and 0 if it isn’t.
    Then the measure of a set is the integral of 1(r) over the whole space.

    Then for example the surface of a geometrical figure is A[1(r)]

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