Detective fiction the Detective. In short, it is difficult to establish who was the first to write the English-language detective novel, as various authors were exploring the theme simultaneously. In 1887, Arthur Conan Doyle created Sherlock Holmes, arguably the most famous of all fictional detectives. Although Sherlock Holmes is not the original fiction detective (he was influenced by Poe's Dupin and Gaboriau's Lecoq), his name has become a byword for the part. Conan Doyle stated that the character of Holmes was inspired by Dr. Joseph Bell, for whom Doyle had worked as a clerk at the Edinburgh Royal Infirmary. Like Holmes, Bell
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