Wednesday, February 15, 2012

Plane Curves: Tractrix


Tractrix

Tractrix (from the Latin verb trahere "pull, drag"; plural: tractrices) is the curve along which a small object moves, under the influence of friction, when pulled on a horizontal plane by a piece of thread and a puller that moves at a right angle to the initial line between the object and the puller at an infinitesimal speed. It is therefore a curve of pursuit. It was first introduced by Claude Perrault in 1670, and later studied by Sir Isaac Newton (1676) and Christian Huygens (1692).

Get copyable formulas for Tractrix from Differential Geometry Library (MathML, TeX, Mathematica input, Maple input)


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