Feb 152009
![[Joseph Louis Lagrange]](http://saints.sqpn.com/wp-content/gallery/new-catholic-dictionary/joseph-louis-lagrange.jpg "16kb jpg detail of a portrait of Joseph Louis Lagrange, date unknown, artist unknown")
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Astronomer. Supplied the analytic foundation for calculus of variations, did valuable researches on differential equations, and made contributions to the solution of equations particularly by the method of combination.
Born
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Astronomer. Supplied the analytic foundation for calculus of variations, did valuable researches on differential equations, and made contributions to the solution of equations particularly by the method of combination.
Born