TY  JOUR
TI  Competence Approach in Teaching the Topic "Tangent Plane and Normal"
KW  surface
KW  tangent plane
KW  normal
KW  partial derivatives
KW  surface curvature
KW  Dupin indicatrix
KW  milling.
JO  Geometry & Graphics
AU  Dmitrieva, I.M.
AU  Ivanov, G.S.
PY  2018
IS  6
PB  INFRA-M Academic Publishing LLC.