TY JOUR TI Modeling Ellipsoids Using Nanocad as Part of the Educational Process KW sphere KW ellipsoid of revolution KW triaxial ellipsoid KW geometric modeling KW surface modeling technology KW modeling algorithm JO Geometry & Graphics AU Ivaschenko, A.V. AU Stepura, A.V. PY 2024 IS 12 PB INFRA-M Academic Publishing LLC.