oricycle
Смотреть что такое "oricycle" в других словарях:
Horocycle — A blue horocycle in the Poincaré disk model and some red normals. The normals converge asymptotically to the upper central point. In hyperbolic geometry, a horocycle (Greek: όριο + κύκλος border + circle) is a curve whose normals all converge… … Wikipedia