Syntractrix information

A syntractrix is a curve of the form

x+{\sqrt {b^{2}-y^{2}}}=a\ln {\frac {b+{\sqrt {b^{2}-y^{2}}}}{y}}.

^[1]

It is the locus of a point on the tangent of a tractrix at a constant distance from the point of tangency, as the point of tangency is moved along the curve.^[2]

^ George Salmon (1879). A Treatise on the Higher Plane Curves: Intended as a Sequel to A Treatise on Conic Sections. Published by Hodges, Foster, and Figgis. Page 290. [1]
^ Dionysius Lardner, A system of algebraic geometry 1823, p. 261–263 [2]

[1] George Salmon (1879). A Treatise on the Higher Plane Curves: Intended as a Sequel to A Treatise on Conic Sections. Published by Hodges, Foster, and Figgis. Page 290. [1]

[2] Dionysius Lardner, A system of algebraic geometry 1823, p. 261–263 [2]

Syntractrix information

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