Louis-Benjamin Francœur

Louis- Benjamin Francoeur ( born August 16, 1773 in Paris, † December 15, 1849 ) was a French mathematician.

Francoeur came from a musical family, his father was temporarily head of the Paris Opera Orchestra. After service in the French Revolutionary Army, he studied from 1794 to 1797 at the newly founded Ecole Polytechnique in Gaspard Monge. He wanted to be Militärkartograph, Gaspard de Prony but caught up with him as an assistant at the Ecole Polytechnique after graduation. For a time he was also formally artillery officer, but not in active service. In 1804 he became professor of mathematics at the Ecole Polytechnique and 1805 mathematics teacher at the Lycée Charlemagne. In 1808 he became professor at the Sorbonne, where he stayed until 1845. During the restoration after the end of Napoleon he lost his post at the Ecole Polytechnique and the Lycée Charlemagne (whom he but then until 1822 retained ), but remained until 1848 a professor at the Sorbonne ( Faculté des Sciences in Paris ), although a laryngeal disease it in 1817 forced himself to be represented.

He wrote numerous textbooks, not only on mathematics, mechanics, geodesy and astronomy ( in which he has since the appearance of the Great Comet in 1811, interested ), but also on botany and was known as an author of a textbook on drawing.

In 1842 he became a member of the Academie des Sciences, and he was a member of the Academies in Saint Petersburg, Edinburgh, Toulouse, Lisbon and Lyon.

His son Isidore also taught mathematics ( at the Collège Chaptal and the Ecole des Beaux -Arts ). His widow donated the Prix Francoeur, the Academie des Sciences awarded.

Writings

• Traité de mécanique élémentaire. 1800 ( with Prony )
• Cours complet de Mathématiques pure. , 2 volumes 1809
• Elemens de statique, 1810
• Uranographie, ou Traité élémentaire d' astronomy, 1812
• La goniometry. In 1820.
• L' enseignment du dessin linéaire. In 1827.
• Astronomy practique. , 1830.
• Elements de technologie. In 1833.
• Géodésie. In 1835.
• Algèbre supérieure 1838
• Mémoire sur l' Aréométrie, 1842
• Traité d' arithmétique appliquée à la banque, commerce au, à l'industrie, etc.. 1845.
• Le dessin d'après la méthode linéaire de l' enseignement mutuel, 1819 (character textbook for schools)
• Flore parisienne ou Description de toutes les plantes of caractères qui croissent naturellement aux environs de Paris, suivant la méthode distribuées du jardin des plantes in 1800, 1801