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Descartes' rule of signs. In mathematics, Descartes' rule of signs, first described by René Descartes in his work La Géométrie, is a technique for getting information on the number of positive real roots of a polynomial. It asserts that the number of positive roots is at most the number of sign changes in the sequence of polynomial's ...
People. v. t. e. The Search for Truth by Natural Light [1] ( La recherche de la vérité par la lumière naturelle) is an unfinished philosophical dialogue by René Descartes “set in the courtly culture of the ‘ honnête homme ’ and ‘ curiosité ’.”. [2] It was written in French (presumably after the Meditations was completed [3 ...
The evil demon, also known as Deus deceptor, [1] malicious demon, [2] and evil genius, [1] [3] is an epistemological concept that features prominently in Cartesian philosophy. [1] In the first of his 1641 Meditations on First Philosophy, Descartes imagines that a malevolent God [1] or an evil demon, of "utmost power and cunning has employed all ...
Cube Route is a fantasy novel by British-American writer Piers Anthony, the twenty-seventh book of the Xanth series. Pangrammatic window. The shortest known published pangrammatic window, a stretch of naturally occurring text that contains all the letters in the alphabet, is found on page 98 of the 2004 First Mass Market Edition.
Cartesian Meditations: An Introduction to Phenomenology ( French: Méditations cartésiennes: Introduction à la phénoménologie) is a book by the philosopher Edmund Husserl, based on four lectures he gave at the Sorbonne, in the Amphithéatre Descartes on February 23 and 25, 1929. Over the next two years, he and his assistant Eugen Fink ...
LeBron Raymone James Sr. ( / ləˈbrɒn / lə-BRON; born December 30, 1984) is an American professional basketball player for the Los Angeles Lakers of the National Basketball Association (NBA). Nicknamed " King James ", he is widely recognized as one of the greatest players in the history of the sport and is often compared to Michael Jordan in ...
Francine Descartes. Francine Descartes (19 July 1635, Deventer – 7 September 1640, Amersfoort) was René Descartes 's daughter. Francine was the daughter of Helena Jans van der Strom, [1] a domestic servant of Thomas Sergeant — a bookshop owner and associate of Descartes at whose house in Amsterdam Descartes lodged on 15 October 1634.
In geometry, Descartes' theorem states that for every four kissing, or mutually tangent, circles, the radii of the circles satisfy a certain quadratic equation. By solving this equation, one can construct a fourth circle tangent to three given, mutually tangent circles. The theorem is named after René Descartes, who stated it in 1643.