L B ( i , x ) = f l o o r ( x ⋅ 2 i  )  2 i      U B ( i , x ) = f l o o r ( x ⋅ 2 i  ) + 1  2 i          E q u a t i o n   4     MathType@MTEF@5@5@+=feaafiart1ev1aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8akY=wiFfYdH8Gipec8Eeeu0xXdbba9frFj0=OqFfea0dXdd9vqai=hGuQ8kuc9pgc9s8qqaq=dirpe0xb9q8qiLsFr0=vr0=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@707D@