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Right- (left-) handed curve

Equivalent names: dextrorsum-sinistrorsum, dextrorotation-levorotation. |

A right-handed curve is a curve with positive torsion ( are opposed; an observer with their feet at *M* and oriented along the binormal vector sees the next binormal vectors turning to the left; when the curve crosses its osculating plane, it comes out on the side of the binormal vector).

See at circular helix, conical helix, helicoid,
solenoid and Borromean rings.

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© Robert FERRÉOL
2018