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Definition. Let P and Q be fixed points in the plane, and let d (P, S) and d (Q, S) denote the Euclidean distances from these points to a third variable point S. Let m and a be arbitrary real numbers. Then the Cartesian oval is the locus of points S satisfying d (P, S) + m d (Q, S) = a. The two ovals formed by the four equations d (P, S) + m d ...
The Descartes Prize was an annual award in science given by the European Union, named in honour of the French mathematician and philosopher, René Descartes . The prizes recognized Outstanding Scientific and Technological Achievements Resulting from European Collaborative Research. The research prize was first awarded in 2000 and was ...
Martin Luther OSA ( / ˈluːθər /; [1] German: [ˈmaʁtiːn ˈlʊtɐ] ⓘ; 10 November 1483 [2] – 18 February 1546) was a German priest, theologian, author, hymnwriter, professor, and Augustinian friar. [3] Luther was the seminal figure of the Protestant Reformation, and his theological beliefs form the basis of Lutheranism.
Cartesian circle. The Cartesian circle (also known as Arnauld 's circle [1]) is an example of fallacious circular reasoning attributed to French philosopher René Descartes. He argued that the existence of God is proven by reliable perception, which is itself guaranteed by God.
De Arte Combinatoria. Frontispiece of the book printed in 1690. The Dissertatio de arte combinatoria ("Dissertation on the Art of Combinations" or "On the Combinatorial Art") is an early work by Gottfried Leibniz published in 1666 in Leipzig. [1] It is an extended version of his first doctoral dissertation, [2] written before the author had ...
Descartes on Polyhedra: A Study of the "De solidorum elementis" is a book in the history of mathematics, concerning the work of René Descartes on polyhedra.Central to the book is the disputed priority for Euler's polyhedral formula between Leonhard Euler, who published an explicit version of the formula, and Descartes, whose De solidorum elementis includes a result from which the formula is ...
Service. Descartes at Sebastopol, during the first day's attack by the allied fleet and armies of France and England on 17 October 1854. She took part in the Crimean War, and was used to ferry wounded from Italy. On 17 October 1855, she took part in the Battle of Kinburn . She was eventually broken up in Brest in July 1867.
Cubic. Snark. Table of graphs and parameters. In the mathematical field of graph theory, a Descartes snark is an undirected graph with 210 vertices and 315 edges. It is a snark, first discovered by William Tutte in 1948 under the pseudonym Blanche Descartes. [1]