Osculating Circle of Conchoid of Nicomedes
r = b + a sec t
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|
Cartesian Equation : |
(x - a)2(x2 + y2) = b2x2 |
|
Polar Equation : |
r = b + a sec t |
References
T. H. Eagles, M.A. Constructive Geometry of Plane Curves, pp. 311-313.
J. Dennis Lawrence, A Catalog of Special Plane Curves, pp. 49-50.
Math World : http://mathworld.wolfram.com/ConchoidofNicomedes.html
Jen-Chung Chuan : http://steiner.math.nthu.edu.tw/ne01/tjy/dynamic/contants/FamousCurves-e.html
Famous Curves Index : http://www-groups.dcs.st-and.ac.uk/~history/Curves/Conchoid.html