1. Desargues, Girard Encyclop Dia Britannica Desargues, Girard French mathematician who figures prominently in the history of projective geometry. Desargues's work was well known by his http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

2. Desargues Biography of Girard Desargues (15911661) http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

3. Gerard Girard Desargues G rard ou Girard Desargues (1591 1661) http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

4. Mathematiques Lyon 1 Institut Girard Desargues (IGD) mathematiques, lyon, IGD, Institut Girard Desargues http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

5. Little Is Known About Girard Desargues' Personal Life. Girard desargues girard Desargues 15911661. Little is known about Girard Desargues' personal life. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

6. Results Fisher Fine Arts Library Image Collection 1 Grand Marot planHouse of Monsieur Roland, Paris by Desargues Marot, Jean I, 16191679, (French) Desargues, Girard, 1591-1662, (French) http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

7. IGD Th Orie Des Nombres Et Algorithmique IGD Th orie des nombres et Combinatoire http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

8. Mathematics Lyon 1 Girard Desargues Institute mathematics, Lyon, Institut Girard Desargues http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

9. Institut Girard Desargues Lundi 15 janvier 2001 Colloquium 16h30 salle 112, b t. 101 Philippe MICHEL (IUF et Montpellier) Familles de Fonction L. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

10. Girard Desargues - Wikipedia, The Free Encyclopedia Girard Desargues http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

11. Girard Desargues: Information From Answers.com Girard desargues girard Desargues ( 1591 1661 ) was a French mathematician andone of the founders of projective geometry. http://www.answers.com/topic/girard-desargues

showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping Girard Desargues Wikipedia @import url(http://content.answers.com/main/content/wp/css/common.css); @import url(http://content.answers.com/main/content/wp/css/gnwp.css); Girard Desargues Girard Desargues ) was a French mathematician and one of the founders of projective geometry . He is the eponym of Desargues' theorem External links Biography http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Desargues.html at the MacTutor archive This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see Mentioned In Girard Desargues is mentioned in the following topics: List of geometers Desargues' theorem List of geometry topics List of French people ... List of mathematicians Wikipedia information about Girard Desargues This article is licensed under the GNU Free Documentation License . It uses material from the Wikipedia article "Girard Desargues" More from Wikipedia Your Ad Here Jump to: Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping Send this page Print this page Link to this page Tell me about: Home About Tell a Friend Buzz ... Site Map

12. Girard Desargues - Wikipedia, The Free Encyclopedia Girard Desargues (1591 1661) was a French mathematician and one of the foundersof projective geometry. He is the eponym of Desargues theorem. http://en.wikipedia.org/wiki/Girard_Desargues

Wikimedia needs your help in its 21-day fund drive. See our fundraising page Over US$150,000 has been donated since the drive began on 19 August. Thank you for your generosity! Girard Desargues From Wikipedia, the free encyclopedia. Girard Desargues ) was a French mathematician and one of the founders of projective geometry . He is the eponym of Desargues' theorem edit External links Biography at the MacTutor archive This biographical article about a mathematician is a stub . You can help Wikipedia by expanding it Retrieved from " http://en.wikipedia.org/wiki/Girard_Desargues Categories 1591 births 1661 deaths ... Mathematician stubs Views Article Discussion Edit this page History Personal tools Create account / log in Navigation Main Page Community portal Current events Recent changes ... Donations Search Toolbox What links here Related changes Upload file Special pages ... Permanent link In other languages Deutsch Suomi Fran§ais Italiano ... Slovenščina This page was last modified 19:00, 3 June 2005. All text is available under the terms of the GNU Free Documentation License (see for details).

13. Desargues Translate this page desargues girard, français, 1591-1661 illustration du traité de Desargues,Encyclopédie Larousse méthodique - 1955. Théorème de Desargues, version http://serge.mehl.free.fr/chrono/Desargues.html

Apollonius de Perge , de Pappus d'Alexandrie et de Ménélaüs , cet architecte et ingénieur militaire (il participa au siège de La Rochelle entrepris par Richelieu en 1627/28 à l'encontre des protestants), étudia les sections coniques et les problèmes de perspective (projection centrale) où une conique (ellipse, parabole, hyperbole) apparaît comme la perspective d'un cercle, définissant ainsi les bases de la projective Notion de géométrie projective : Descartes , à laquelle il s'opposera cependant en tant que défenseur de la géométrie synthétique (géométrie pure ), plongeront dans l'oubli ses traités aujourd'hui perdus : Méthode universelle pour mettre en perspective les objets sans employer aucun point hors de l'ouvrage (1636) et Carnot Gergonne Monge et Poncelet illustration du traité de Desargues, Encyclopédie Larousse méthodique - 1955 , version élémentaire (géométrie affine) : si deux triangles ABC et A'B'C' (six points distincts) ont leurs côtés homologues respectivement parallèles : (AB)//(A'B'), (BC)//(B'C'), (CA)//(C'A') alors les droites (AA'), (BB') et (CC') sont concourantes ou parallèles. homologiques de Desargues (dans le plan), version projective :

14. LA BIBLIOTHEQUE DU DIX-SEPTIEMISTE Translate this page ***desargues girard, Œuvres de Desargues réunies et analysées par Poudra, Paris,1864, 2 vol. L’un des quatre grands mathématiciens du XVIIe siècle. http://odalix.univ-bpclermont.fr/Cibp/Bib17/B17-A-I2.htm

C.E.R.H.A.C. Centre International Blaise Pascal La bibliothèque du dix-septiémiste (mise à jour le 22 juin 2005) PREMIÈRE PARTIE : TEXTES ET ÉDITIONS I. Auteurs français (D-L) Barème : ** Vaut le détour. *** Vaut le voyage. **** Indispensable. DANCOURT , voir ci-dessous Théâtre du XVII e Siècle . Pour mémoire. DANIEL Gabriel Voyage du monde de Descartes , Paris, 1690, qui n'a jamais été étudié sérieusement. DASSOUCY Charles Les aventures de M. Dassoucy , publiées dans Les libertins du XVII e siècle , I, éd. Jacques Prévot, Pléiade, Gallimard, Paris, 1998. DE BEAUNE Florimond , éd. P. Costabel et B. Barbiche, Vrin, Paris, 1975. Beau traité de géométrie, mais réservé aux amateurs. De Beaune a aussi commenté la Géométrie de Descartes. DESARGUES Girard e siècle. René Taton a publié son Brouillon Projet avec une excellente introduction ( , Vrin, 1981). On attend une édition mise à jour prochainement. Il est vrai que sa lecture demande un petit effort, mais on se sent tellement mieux quand on a compris le théorème de Pappus... Il existe une traduction anglaise, avec introduction : FIELD J. V. et GRAY J.J., The geometrical work of Girard Desargues , New York, Berlin, Springer-Verlag, 1987.

15. Plan Projectif - Figures Interactives Avec GéoPlan Translate this page Girard Desargues (Français 1591-1661) est le créateur de la géométrie projective desargues girard - Géomètre français 1591-1661. Théorème de Desargues http://www.maths.ac-aix-marseille.fr/debart/1s/plan_projectif.html

Le plan projectif ... avec GéoPlan Sommaire Pappus Desargues Polaire a. Droite de Newton b. Droites des milieux c. Point de Miquel d. Alignement des orthocentres : ce document au format Word Figures classiques : charger la version non interactive de cette page Voir la documentation sur ActiveX Le barycentre Les La Angles Rotations GéoPlan Produit scalaire Girard Desargues ( R R Carrega J.-C. - Ladegaillerie Yves - Géométrie pour le CAPES - Ellipses 2003 (CO) coupe (PD) en A et (DO) coupe (PC) en B. Il existe un nombre k k , soit 2 k O est le barycentre de (P, 2 k ) et (J, 2). Comme J est milieu de [CD], le donc k formule 1 O est le barycentre de (P, 2 k ) ; (C, 1) et (D, 1). k ) et (D, 1) et aussi que B est le barycentre partiel de (P, 2 k ) et (C, 1) ; donc 2 k et 2 k formules 2 et 3 formules 2 et 3 , on trouve (2 k et (2 k k formule 2, on trouve (2 k k D est le barycentre de (A, 2 k + 1) et (P, -2 k La formule vectorielle de Leibniz ( a + b a b k k formule 1 on obtient : k : O est le barycentre de (C, 1) et (A, 2 k Des calculs similaires avec la formule 3 k k ; C est le barycentre de (B, 2

16. Plan Projectif Translate this page Girard Desargues (Français 1591-1661) est le créateur de la géométrie projective, Desargues. desargues girard - Géomètre français 1591-1661 http://www.maths.ac-aix-marseille.fr/debart/1s/plan_projectif_classique.html

Plan projectif ... avec GéoPlan Sommaire Pappus Desargues Polaire a. Droite de Newton b. Droites des milieux c. Point de Miquel d. Alignement des orthocentres Figures interactives : ce document au format Word Produit scalaire Transformations Minimum-maximum Les Angles Rotations Girard Desargues ( R R Carrega J.-C. - Ladegaillerie Yves - Géométrie pour le CAPES - Ellipses 2003 (CO) coupe (PD) en A et (DO) coupe (PC) en B. Il existe un nombre k k , soit 2 k O est le barycentre de (P, 2 k ) et (J, 2). Comme J est milieu de [CD], le donc k formule 1 O est le barycentre de (P, 2 k ) ; (C, 1) et (D, 1). k ) et (D, 1) et aussi que B est le barycentre partiel de (P, 2 k ) et (C, 1) ; donc 2 k et 2 k formules 2 et 3 formules 2 et 3 , on trouve (2 k et (2 k k formule 2, on trouve (2 k k D est le barycentre de (A, 2 k + 1) et (P, -2 k La formule vectorielle de Leibniz ( a + b a b k k formule 1 on obtient : k : O est le barycentre de (C, 1) et (A, 2 k Des calculs similaires avec la formule 3 k k ; C est le barycentre de (B, 2 k + 1) et (P, -2 k) k : O est le barycentre de (D, 1) et (B, 2

17. Desargues Founder of projective geometry, his work centred on the theory of conic sectionsand perspective. http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Desargues.html

Girard Desargues Born: 21 Feb 1591 in Lyon, France Died: Sept 1661 in Lyon, France Click the picture above to see a larger version Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Version for printing Little is known about Girard Desargues ' personal life. His family (on both his mother's and his father's side) had been very rich for several generations and had supplied lawyers and judges to the Parlement in Paris as well as to that in Lyon (then the second most important city in France). Desargues seems to have made several extended visits to Paris in connection with a lawsuit for the recovery of a huge debt. Despite this loss, the family still owned several large houses in Lyon, a manor house (and its estate) at the nearby village of Vourles, and a small chateau surrounded by the best vineyards in the vicinity. It is thus clear that Desargues had every opportunity of acquiring a good education, could afford to buy what books he chose, and had leisure to indulge in whatever pursuits he might enjoy. In his later years, these seem to have included designing an elaborate spiral staircase, and an ingenious new form of pump, but the most important of Desargues' interests was Geometry. He invented a new, non-Greek way of doing geometry, now called 'projective' or 'modern' geometry. As a mathematician he was very good indeed: highly original and completely rigorous. He is, however, far from lucid in his mathematical style.

18. References For Desargues References for the biography of girard desargues. JV Field and JJ Gray, Thegeometrical work of girard desargues (New YorkBerlin, 1987). http://www-groups.dcs.st-and.ac.uk/~history/References/Desargues.html

References for Girard Desargues Version for printing Biography in Dictionary of Scientific Biography (New York 1970-1990). Biography in Encyclopaedia Britannica. available on the Web Books: J V Field, The Invention of Infinity: Mathematics and Art in the Renaissance (Oxford 1997). J V Field and J J Gray, The geometrical work of Girard Desargues (New York-Berlin, 1987). R Taton, (Paris, 1951). R Taton, (Paris, 1951). Articles: K Andersen, Desargues' method of perspective : its mathematical content, its connection to other perspective methods and its relation to Desargues' ideas on projective geometry, Centaurus N A Court, Desargues and his strange theorem. II, Scripta Math. N A Court, Desargues and his strange theorem, Scripta Math. J V Field, Perspective and the mathematicians : Alberti to Desargues, in Mathematics from manuscript to print, 1300-1600 (New York, 1988), 236-263. J V Field, Linear perspective and the projective geometry of Girard Desargues, Nuncius Ann. Storia Sci. Contributions to the history of mathematics (Modena, 1992), 29-33.

19. Bibliothèque De Mathématiques Th¨mes de recherche th©orie des repr©sentations, analyse, g©om©trie, logique. Universit© Lyon 1, CNRS UMR 5028. http://www.desargues.univ-lyon1.fr/

Bibliothèque de Mathématiques UFR de mathématiques - Université Claude Bernard Lyon 1 Membre du Réseau National des Bibliothèques de Mathématiques CATALOGUE OUVRAGES CATALOGUE PÉRIODIQUES BASES DE DONNÉES ... PRÉPUBLICATIONS LOCALES Horaires d'ouverture : du lundi au vendredi, de 9h à 12h et de 13h à 17h30. Fermeture du 14 juillet 2005 au 31 aout 2005. Accès (Site de la Doua) Formulaire d'inscription [Pdf] Adresse postale : Bibliothèque de Mathématiques Université Claude Bernard Lyon 1 Bâtiment Doyen Jean Braconnier 21 Avenue Claude Bernard 69622 VILLEURBANNE Cedex FRANCE Directeur P. Mironescu Bibliothécaire F. Zerari Technicienne M. Ranneaud mise à jour 06/2005 Suggestions

20. Desargues, Girard --  Encyclopædia Britannica desargues, girard French mathematician who figures prominently in the history ofprojective geometry. desargues s work was well known by his contemporaries, http://www.britannica.com/eb/article-9030039

Home Browse Newsletters Store ... Subscribe Already a member? Log in Content Related to this Topic This Article's Table of Contents Girard Desargues Print this Table of Contents Shopping Price: USD $1495 Revised, updated, and still unrivaled. The Official Scrabble Players Dictionary (Hardcover) Price: USD $15.95 The Scrabble player's bible on sale! Save 30%. Merriam-Webster's Collegiate Dictionary Price: USD $19.95 Save big on America's best-selling dictionary. Discounted 38%! More Britannica products Desargues, Girard  Encyclopædia Britannica Article Page 1 of 1 Girard Desargues born February 21, 1591, Lyon, France died October 1661, France French mathematician who figures prominently in the history of projective geometry . Desargues's work was well known by his contemporaries, but half a century after his death he was forgotten. His work was rediscovered at the beginning of the 19th century, and one of his results became known as Desargues's theorem Desargues, Girard...

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