Mathematician:Joseph Diez Gergonne

Mathematician
French mathematician and logician, best known for founding and editing.

Nationality
French

History

 * Born: 19 June 1771 in Nancy, France
 * 1816: Provided an elegant solution to the Problem of Apollonius
 * Died: 4 May 1859 in Montpellier, France

Theorems and Definitions

 * Introduced the concept of duality in projective geometry
 * Introduced the word polar

Publications

 * 1810: Founded
 * 1813: Methods of synthesis and analysis in mathematics (unpublished)
 * 1815: The application of the method of least squares to the interpolation of sequences
 * 1818: Essai sur la théorie des définitions ("An essay on the theory of definition")

Notable Quotes

 * It is not possible to feel satisfied at having said the last word about some theory as long as it cannot be explained in a few words to any passer-by encountered in the street.