The Tractrix
Introduction:
The tractrix, or Hundekurve in German, is the path traced by a point P on the end of an inextensible rod as one end of the rod is pulled vertically along the y axis. It is also the involute of a catenary.
Definition:
Properties:
Velocity and Acceleration:
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The Tangent Vector:
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Arc Length: |
Curvature:
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