The radial curve of the tractrix
 |  |  |
(1)
|
 |  |  |
(2)
|
with radiant point 
is the kappa curve
 |  |  |
(3)
|
 |  |  |
(4)
|
Tractrix Radial Curve
See also
Kappa Curve, Radial Curve, TractrixExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Tractrix Radial Curve." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/TractrixRadialCurve.html