 |  |
The parametric equations for a catenary are
 |  |  |
(1)
|
 |  |  |
(2)
|
giving the involute as
 |  |  |
(3)
|
 |  |  |
(4)
|
The involute is therefore half of a tractrix.
Catenary Involute
See also
Catenary, Catenary Evolute, Involute, TractrixExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Catenary Involute." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/CatenaryInvolute.html