MATRIX MODELING OF SURFACE ROUGHNESS OBTAINED BY WIRE ELECTRICAL DISCHARGING MACHININGMATRIX MODELING OF SURFACE ROUGHNESS OBTAINED BY WIRE ELECTRICAL DISCHARGING MACHINING. revtn [Internet]. 2015 Jun. 30 [cited 2026 May 7];19(2). Available from: https://www.revtn.ro/index.php/revtn/article/view/104