Mathematician:Edmond Nicolas Laguerre

Mathematician
French mathematician whose main works were in the areas of geometry and complex analysis.

Investigated orthogonal polynomials, including the Laguerre polynomials.

Laguerre's method is a root-finding algorithm tailored to polynomials.

Laid the foundations of a geometry of oriented spheres.

Nationality
French

History

 * Born: 9 April 1834 in Bar-le-Duc, France
 * Died: 14 August 1886 in Bar-le-Duc, France

Theorems and Definitions

 * Laguerre Geometry
 * Laguerre Plane
 * Laguerre Polynomial
 * Laguerre Transformation
 * Big q-Laguerre Polynomial
 * Gauss-Laguerre Quadrature (with )
 * Laguerre Form
 * Laguerre Formula
 * Laguerre's Method
 * Laguerre-Pólya Class (with )

Publications

 * 1853: On the theory of foci










 * 1880: Notes sur la résolution des équations numériques












 * 1884: Théorie des équations numériques


 * 1885: Recherches sur la géométrie de direction; méthodes de transformation; anticaustiques