RT Journal Article SR Electronic A1 MACUROVÁ, Anna T1 MATHEMATICAL MODEL AND DIFFERENTIAL EQUATION JF Trends in education YR 2008 VO 1 IS 1 SP 582 OP 584 UL https://tvv-journal.upol.cz/en/artkey/tvv-200801-0136.php AB The article introduces the result of the experimental dependencies of the maximum roughness of the cut surface. The maximum deviation is formulated by the differential equation.