Desargues, Gérard

   engineer, mathematician
   Born in lyon, Gérard (or Gespard) Desargues was dedicated to research in pure geometry and was the first to understand the fundamental role of perspective. He gave, after Apollonios, the basis for the projective geometry of conic sections (Brouillon project d'une atteinte aux événements des rencontres du cône avec un plan, 1639). Among his most important conclusions, he was able to prove the idea that all conic forms can be considered as the projection of a circle, the concept of an infinite point in a right angle, the subsequent identification of a cluster of parallel right angles, and a cluster of concurrent right angles, as well as that of a cone and a cylinder, the theory of the involution on a right angle and the Desargues Theorem on homologic triangles.

France. A reference guide from Renaissance to the Present . 1884.

Look at other dictionaries:

  • Desargues, Gérard — De·sargues (dā zärgʹ), Gérard. 1591 1661. French army officer and mathematician regarded as one of the founders of modern geometry. * * * …   Universalium

  • Gérard Desargues — (* 21. Februar 1591 in Lyon; † Oktober 1661 in Lyon) war ein französischer Architekt und Mathematiker, der als einer der Begründer der Projektiven Geometrie gilt …   Deutsch Wikipedia

  • Desargues — Gérard Desargues Gérard Desargues (* 21. Februar 1591 in Lyon; † 1661 in Lyon) war ein französischer Architekt und Mathematiker. Neben verschiedenen Gebäuden in Paris und Lyon geht die Fassade des Lyoner Rathauses auf seinen Entwurf zurück. Zu… …   Deutsch Wikipedia

  • Gérard Desargues — Gérard Desargues. Gérard Desargues (21 de febrero de 1591 Octubre de 1661) fue un matemático e ingeniero Francés, considerado por algunos como padre fundador de la Geometría proyectiva. Su nombre es empleado hoy en día como un epónimo del Teorema …   Wikipedia Español

  • DESARGUES (G.) — DESARGUES GÉRARD (1591 1661) Mathématicien français qui a introduit les premiers concepts de la géométrie projective. Desargues est né à Lyon, mais on connaît peu de chose sur les premières années de sa vie. Il a été conseiller technique du… …   Encyclopédie Universelle

  • Desargues — (Gérard) (1591 1662) mathématicien français …   Encyclopédie Universelle

  • Gérard Desargues — Girard Desargues Girard Desargues (February 21 1591–October 1661) was a French mathematician and engineer, who is considered one of the founders of projective geometry. Desargues theorem, the Desargues graph, and the crater Desargues on the Moon… …   Wikipedia

  • Gérard Desargues — Girard Desargues Girard Desargues Naissance 2 mars 1591 Lyon (France) Décès Octobre 1661 Lyon (France) …   Wikipédia en Français

  • Desargues graph — Named after Gérard Desargues Vertices 20 Edges 30 …   Wikipedia

  • Desargues (crater) — Coordinates 70°12′N 73°18′W / 70.2°N 73.3°W / …   Wikipedia

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