- tritangent conic
- мат.трижды касательная кривая второго порядка
English-Russian scientific dictionary. 2008.
English-Russian scientific dictionary. 2008.
Cubic surface — A cubic surface is a projective variety studied in algebraic geometry. It is an algebraic surface in three dimensional projective space defined by a single polynomial which is homogeneous of degree 3 (hence, cubic). Cubic surfaces are del Pezzo… … Wikipedia