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ASYMPTOTIC LINE OF THE TORUS
open torus |
![]() horn torus |
![]() spindle torus |
Toric differential equation: Toric equation:
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Note that since the asymptotic lines only pass through hyperbolic points, they only exist in the internal part of the torus.
See also the geodesics of
the torus.
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© Robert FERRÉOL 2018