In 1894 the Eastern Extension Telegraph Company laid a cable from Singapore to Labuan and Hong Kong, thus duplicating the route and making it an all-British line.
The curve also permits the solution of the problems of duplicating a cube and trisecting an angle.
That he made considerable progress in the study of these curves is evidenced by Eutocius, who flourished about the 6th century A.D., and who assigns to Menaechmus two solutions of the problem of duplicating the cube by means of intersecting conics.
Surveillance revealed that Chinese nationals were possibly using an industrial unit for duplicating and distributing counterfeit DVDs.
This prevents duplicating a value when a neighboring segment sets a formant on the boundary.