Eugène François Vidocq the first scientific and methodical investigators who played the lead role in many adventures, who in turn was a major influence for the creation of Sherlock Holmes. It is also believed that Edgar Allan Poe was prompted by a story about Vidocq to create the first detective in fiction, C. Auguste Dupin, who appeared, for example, in the short story "The Murders in the Rue Morgue", which is considered the first detective story. Vidocq is also mentioned in "Moby Dick" ("Chapter 88: Schools and Schoolmasters") and "White Jacket" ("Chapter VI: The Quarterdeck Officers,etc.") by Herman Melville and "Great Expectations" by
Dupin cyclide "R" are a 3-dimensional vectors, and "A" and "B" are constants. Families of cyclides give rise to various cyclidic coordinate geometries. In Maxime Bôcher's 1891 dissertation, "Ueber die Reihenentwickelungen der Potentialtheorie", it was shown that the Laplace equation in three variables can be solved using separation of variables in 17 conformally distinct quadric and cyclidic coordinate geometries. Many other cyclidic geometries can be obtained by studying R-separation of variables for the Laplace equation. Dupin cyclide In mathematics, a Dupin cyclide or cyclide of Dupin is any geometric inversion of a standard torus, cylinder or double cone. In particular, these latter