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Lagrange, Joseph-Louis

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Lagrange, Joseph-Louis

Published: April 18, 2007, 12:39 am
Updated: April 18, 2007, 12:39 am
Lead Author: Cutler Cleveland
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This article has been reviewed by the following Topic Editor: Peter Saundry
Joseph-Louis Lagrange. (Source: <a href='http://www.stsci.edu/resources/' class='external text' title='http://www.stsci.edu/resources/' rel='nofollow'>Space Telescope Science Institute</a>) Joseph-Louis Lagrange. (Source: Space Telescope Science Institute)

Joseph-Louis Lagrange (1736-1813), a French mathematician and mathematical physicist who developed the calculus of variations. Widely regarded as the greatest mathematician of the eighteenth century, his work Mècanique Analytique (Analytical Mechanics, published in 1788) is considered a mathematical masterpiece that covered nearly every area of pure mathematics without the use of a single diagram. Lagrange established the theory of differential equations, invented the method of solving differential equations known as variation of parameters, and provided many new solutions and theorems in number theory. Lagrange succeeded Leonhard Euler as the Director of the prestigious Berlin Academy.

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Citation

Cutler Cleveland (Lead Author);Peter Saundry (Topic Editor) "Lagrange, Joseph-Louis". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth April 18, 2007; Last revised Date April 18, 2007; Retrieved February 10, 2012 <http://www.eoearth.org/article/Lagrange%2C_Joseph-Louis>

The Author

Cutler Cleveland Editor-in-Chief The Encyclopedia of Earth Cutler J. Cleveland is the founding Editor-in-Chief of the Encyclopedia of Earth. Dr. Cleveland is currently a Professor in the Department of Geography and Environment at Boston University, with joint appointments in the Center for Energy and Environmental Studies and the Pardee Center for the Study of the Longer Range Future. He also is a Senior Fellow at the National Council for Science and the Environment in Washington D.C. Dr. Cleveland is als ... (Full Bio)

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