# Mathematician:Joseph Diez Gergonne

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## Contents

## Mathematician

French mathematician and logician, best known for founding and editing *Annales de mathématiques pures et appliquées*.

## 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
*Annales de mathématiques pures et appliquées* - 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*Methods of synthesis and analysis in mathematics*(unpublished) - 1815: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.*

## Sources

- John J. O'Connor and Edmund F. Robertson: "Joseph Diez Gergonne": MacTutor History of Mathematics archive

- 2008: David Nelson:
*The Penguin Dictionary of Mathematics*(4th ed.) ... (previous) ... (next): Entry:**Gergonne, Joseph Diez**(1771-1859)