Michel Chasles (15 November 1793 – 18 December 1880) was a French mathematician. Image File history File links Size of this preview: 430 × 600 pixelsFull resolution (638 × 890 pixel, file size: 97 KB, MIME type: image/jpeg) Michel Chasles (1793–1880), French mathematician. ... Image File history File links Size of this preview: 430 × 600 pixelsFull resolution (638 × 890 pixel, file size: 97 KB, MIME type: image/jpeg) Michel Chasles (1793–1880), French mathematician. ... November 15 is the 319th day of the year (320th in leap years) in the Gregorian calendar, with 46 days remaining. ... 1793 was a common year starting on Tuesday (see link for calendar). ... In the Gregorian Calendar, December 18 is the 352nd day of the year (353rd in leap years), at which point there will be 13 days remaining to the end of the year. ... Year 1880 (MDCCCLXXX) was a leap year starting on Thursday (link will display the full calendar). ... Leonhard Euler is considered by many to be one of the greatest mathematicians of all time A mathematician is the person whose primary area of study and research is the field of mathematics. ...

He was born at Épernon in France and studied at the École Polytechnique in Paris under Siméon Denis Poisson. In the War of the Sixth Coalition he was drafted to fight in the defence of Paris in 1814. After the war, he gave up on a career as an engineer or stockbroker in order to pursue his mathematical studies. Épernon is a commune of the Eure-et-Loir département, at the confluence of the Drouette and the Guesle, 17 miles northeast of Chartres. ... Logo The Arms of the École Polytechnique The cadets of Polytechnique rushed to the defense of Paris against the foreign armies in 1814. ... City flag City coat of arms Motto: Fluctuat nec mergitur (Latin: Tossed by the waves, she does not sink) Paris Eiffel tower as seen from the esplanade du Trocadéro. ... Siméon Poisson. ... The Sixth Coalition (1813-1814) was a coalition of the United Kingdom, Russia, Prussia, Sweden, Austria and a number of German States against the Napoleonic France. ...

In 1837 he published his Historical view of the origin and development of methods in geometry, a study of the method of reciprocal polars in projective geometry. The work gained him considerable fame and respect and he was appointed Professor at the École Polytechnique in 1841, then he was awarded a chair at the Sorbonne in 1846. Projective geometry is a non-metrical form of geometry that emerged in the early 19th century. ... The Sorbonne, Paris, in a 17th century engraving The historic University of Paris (French: ) first appeared in the second half of the 12th century, but was in 1970 reorganised as 13 autonomous universities (University of Paris I–XIII). ...

Jakob Steiner had proposed the problem of enumerating the number of conic sections tangent to each of five given conics, and had answered it incorrectly. Chasles developed a theory of characteristics that enabled the correct enumeration of the conics (there are 3264) (see enumerative geometry). He established several important theorems (all called Chasles' theorem). That on solid body kinematics was seminal for understanding their motions, and hence to the development of the theories of dynamics of rigid bodies. Jakob Steiner (18 March 1796 – April 1, 1863) was a Swiss mathematician. ... In mathematics, enumerative geometry is the branch of algebraic geometry concerned with counting numbers of solutions to geometric questions, mainly by means of intersection theory. ... Several results in mathematics have been attributed to Michel Chasles and named Chasles theorem: In kinematics, the most general rigid body displacement can be produced by a translation along a line followed (or preceded) by a rotation about that line. ...

In 1865 he was awarded the Copley Medal. The Copley Medal is a scientific award for work in any field of science, the highest award granted by the Royal Society of London. ...

As described in A Treasury of Deception, by Michael Farquhar (Peguin Books, 2005), between 1861 and 1869 Chasles purchased over 27,000 forged letters from Frenchman Vrain-Denis Lucas. Included in this trove--all apparently written in modern French--were letters from Alexander the Great to Aristotle, from Cleopatra to Julius Caesar (written in French!), and from Mary Magdalene to a revived Lazarus. Alexander the Great (Greek: ,[1] Megas Alexandros; July 356 BC–June 11, 323 BC), also known as Alexander III, king of Macedon (336–323 BC), was one of the most successful military commanders in history. ... Aristotle (Greek: AristotélÄ“s) (384 BC – March 7, 322 BC) was a Greek philosopher, a student of Plato and teacher of Alexander the Great. ... This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... Gaius Julius Caesar [1] (Latin pronunciation ; English pronunciation ; July 12 or July 13, 100 BC or 102 BC – March 15, 44 BC), was a Roman military and political leader and one of the most influential men in classical antiquity. ... The penitent Mary Magdalen, a much reproduced composition by Titian. ... Resurrection of Lazarus by Juan de Flandes, around 1500 For other uses, see Lazarus (disambiguation). ...

References

• Biography of Michel Chasles
• 1910 New Catholic Dictionary