Assertion: spindle torus | /r/HasProperty | pinkall
Facets:
Source sentences:
text: Three types of torus, known as the standard tori, are possible, depending on the relative sizes of and . corresponds to the ring torus (shown above), corresponds to a horn torus which is tangent to itself at the point (0, 0, 0), and corresponds to a self-intersecting spindle torus (Pinkall 1986).