Mystery film include "The Gold Bug" (1910), also from France, and "The Murders in the Rue Morgue" (1914). Both are derived from stories by Edgar Allan Poe, which is appropriate as Poe is often credited with creating modern detective fiction as well as the first private detective character, C. Auguste Dupin. Universal Pictures renamed him Pierre Dupin in "Murders in the Rue Morgue" (1932), an atmospheric horror-mystery starring Bela Lugosi. The film was remade twice more in 1953 and 1971. Poe's second Dupin story, "The Mystery of Marie Rogêt", was filmed in 1942. More recently, "The Raven" (2012) presented a fictionalized account
Dupin cyclide also used to refer to a more general class of quartic surfaces which are important in the theory of separation of variables for the Laplace equation in three dimensions. Dupin cyclides were investigated not only by Dupin, but also by A. Cayley und J.C. Maxwell. Today, Dupin cylides are used in computer-aided design (CAD), because cyclide patches have rational representations and are suitable for blending canal surfaces (cylinder, cones, tori, and others). There are several equivalent definitions of Dupin cyclides. In formula_1, they can be defined as the images under any inversion of tori, cylinders and double cones. This shows