![]() "A Thin Flat Fell Down and Disclosed the Muzzle of."My Feeling Is That, For Film Audiences, Audiences."Trouble Is Fun When You’ve Got the Perfect Escape."A Man Pulls You from Certain Death-and Instead of."You Don't Mean to Tell Me That You Drench That Ra.Fitzgerald's First Felonious Fledgling Flight."There Are Limits, Of Course, Both to a Novelist's."If Anybody'd Murdered 'im, 'ow Could 'e Possibly."They Were His First Burglars, and They Rather Sho."So We Just Had to Page the Murderer-and He Comes."Already It Was No More Than a Puddle of Heavy Mis."It Must Be a Great Consolation to You to Reflect."Strikes Me Both of Those Birds Have Skeletons in."Now, Lo and Behold, the Perfect Crime Had Been Co."Names Make News but Sometimes It Isn't Healthy to.We discovered practically from the beginning of this weblog that it is impossible for anyone who appreciates the mystery story to ignore Edgar Allan Poe, our latest brush with him being ( HERE) in one of our earliest posts we highlighted Hillary Waugh's appraisal of the contribu-tions which the Raven made to detective fiction ( HERE)- and the one aspect of the form that Poe missed. ![]() The name also implies 'duping' or deception, a skill Dupin shows off in 'The Purloined Letter.' Detective fiction, however, had no real precedent and the word detective had not yet been coined when Poe first introduced Dupin." "Poe may have gotten the last name 'Dupin' from a character in a series of stories first published Burton's Gentleman's Magazine in 1828 called 'Unpublished passages in the Life of Vidocq, the French Minister of Police.' Every source we have come across gives Poe's "inspiration" for Dupin to someone else: Dupont had done more work for the police that ever came to Poe's knowledge: if Poe had not used the name under so thin a disguise he might have learned more, and perhaps would have written better and more astounding and analytical tales.'" 'Dupont,' he adds, 'merely laughed when he saw his name disguised in Charles Baudelaire's translation, nor had he ever taken offence at the liberty I had taken in sending to Poe the true facts of the solution of the mystery-facts which in their results were, of course, well known to the police authorities, although not in their details. claims to have supplied to Poe, having learned them from Dupont himself, with whom he was very closely associated during a sojourn of seven years in Paris. " The Murders in the Rue Morgue, indeed, is very largely founded upon facts, which F.D.C. Auguste Dupont, a man of acute analytical powers, who was frequently called in to aid the police in the manner Poe describes. "According to a letter published (1879) in the New York World and signed F.D.C., the character was drawn after a real person, one C. Auguste, an amateur detective introduced into three of Poe's tales- The Murders in the Rue Morgue, The Mystery of Marie Roget, and The Purloined Letter-in all of which he is represented as rendering important services to the Parisian police by unravelling apparently insoluble mysteries. There are several equivalent definitions of Dupin cyclides.Conan Doyle readily admitted that he was inspired by Poe's character, but who inspired Dupin? This article claims to know: Young.ĭupin cyclides are used in computer-aided design because cyclide patches have rational representations and are suitable for blending canal surfaces (cylinder, cones, tori, and others). This property means that Dupin cyclides are natural objects in Lie sphere geometry.ĭupin cyclides are often simply known as cyclides, but the latter term is 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.ĭupin cyclides were investigated not only by Dupin, but also by A. Barono Pierre Charles Franois DUPIN (6a de Oktobro 1784, Varzy, Nivre 18a de Januaro 1873, Parizo, Francio) estis franca matematikisto, ineniero, ekonomikisto 1 kaj politikisto, partikulare konata pro sia laboro en la fako de matematiko, kie la Dupina cikledo kaj la Dupina indikatoro estas nomita la li kaj pro sia. ![]() The key property of a Dupin cyclide is that it is a channel surface (envelope of a one-parameter family of spheres) in two different ways. They were discovered by (and named after) Charles Dupin in his 1803 dissertation under Gaspard Monge. In particular, these latter are themselves examples of Dupin cyclides. In mathematics, a Dupin cyclide or cyclide of Dupin is any geometric inversion of a standard torus, cylinder or double cone.
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