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Joseph-Louis Lagrange, also reported as Giuseppe Luigi Lagrange or Lagrangia, was an Italian and naturalized French mathematician, physicist and astronomer. He made significant contributions to the fields of analysis, number theory, and both classical and celestial mechanics.
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science · Italian-French scientist (1736–1813) · mathematician · astronomer · physicist · politician · writer · university teacher · surveying engineer · count · also Joseph-Louis Lagrange, José Luis Lagrange, Joseph Louis, Comte Lagrange, Joseph Louis Lagrange, Luigi Lagrange, Giuseppe Luigi Lagrangia
Born 25 January 1736 · Died 10 April 1813 · Q80222
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“with characteristic courtesy he withheld a paper he had previously written, which covered some of the same ground, in order that the young Italian might have time to complete his work, and claim the undisputed invention of the new calculus”
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“Presidential Address British Association for the Advancement of Science”
Awarded Knight Grand Cross of the Order of the Reunion (1813).
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Died 1813-04-10.
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“It took them only an instant to cut off that head, but France may not produce another like it in a century.”
“Newton was the greatest genius that ever existed, and the most fortunate, for we cannot find more than once a system of the world to establish.”
A week before his death in Paris, and was buried in the Panthéon, a mausoleum dedicated to the most honoured French people
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Justifies the employment of infinitesimals, and concludes by saying that:
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Lagrange started a thorough revision of the Mécanique analytique, but he was able to complete only about two-thirds of it before his death in Paris in 1813, in 128 rue du Faubourg Saint-Honoré
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Awarded Grand Officer of the Legion of Honour (1808).
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Napoleon made Lagrange a Grand Officer of the Legion of Honour and a Count of the Empire
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Explained how, by the variation of arbitrary constants, the periodical and secular inequalities of any system of mutually interacting bodies could be determined
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The subject was reopened by Poisson, who, in a paper read before the French Academy, showed that Lagrange's formulae led to certain limits for the stability of the orbits
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Annexed his fatherland Piedmont to France
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Career landmark: member of the Sénat conservateur (1799–1813).
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Career landmark: president of the French Academy of Sciences (1795–1796).
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Awarded Fellow of the Royal Society (1791).
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Studied at University of Turin (1754).
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Born 1736-01-25.
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