Lexell

Anders Johan Lexell

Born: 24 Dec 1740 in €bo, Sweden (now Turku, Finland)
Died: 11 Dec 1784 in St Petersburg, Russia

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Lexell worked at Uppsala and St Petersburg where he was a close associate of Euler. He worked in analysis and geometry. He followed Euler in studying integrating factors for differential equations and suggested a classification of elliptic integrals.

Lexell made major contributions to spherical geometry and trigonometry. On Euler's death he was appointed to his chair, but died one year later.

References elsewhere in this archive:

Tell me about Lexell's work on orbits and gravitation

References:

  1. Dictionary of Scientific Biography
  2. Précis de la vie de M Lexell, Nova acta Acad. Sci. Petropolitanae 2 (1784), 12-15. 
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JOC/EFR February 1996