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May 20, 2019 · Joseph Louis Lagrange was a major contributor to modern mathematics. Learn about his discoveries and contributions to math, physics, and mechanics.
Joseph-Louis Lagrange (born Giuseppe Luigi Lagrangia or Giuseppe Ludovico De la Grange Tournier; 25 January 1736 – 10 April 1813), also reported as Giuseppe Luigi Lagrange or Lagrangia, was an Italian mathematician, physicist and astronomer, later naturalized French.
Joseph-Louis Lagrange, comte de l’Empire was an Italian French mathematician who made great contributions to number theory and to analytic and celestial mechanics. His most important book, Mécanique analytique (1788; “Analytic Mechanics”), was the basis for all later work in this field.
His work in Berlin covered many topics: astronomy, the stability of the solar system, mechanics, dynamics, fluid mechanics, probability, and the foundations of the calculus. He also worked on number theory proving in 1770 that every positive integer is the sum of four squares.
Lagrange made major contributions to many branches of mathematics. Some of the most important ones are on calculus of variations, solution of polynomial equations and power series and functions.
May 30, 2018 · Joseph-Louis Lagrange is a giant in the history of mathematics. He made major contributions to the development of physics, celestial mechanics, calculus, algebra, number theory, and group theory. He was largely self-taught and did not obtain a university degree.
One of the world's greatest mathematicians, his most important work, Mécanique Analytique (“Analytical Mechanics”), liberated the science of mechanics from geometry by expressing the laws of motion in a form that could be manipulated algebraically without recourse to diagrams.
