![]() ![]() In the 17 years of his second stay in St. Despite his age and the nearly total blindness that befell him, he worked productively to the end of his life. On July 17 (28), 1766, Euler and his family returned to St. Petersburg Academy of Sciences by, for example, acquiring scientific literature and equipment and negotiating with candidates for positions at the academy. Sofronov were sent to Berlin to study under his direction. He helped train Russian mathematicians the future academicians S. Euler edited the mathematics section of the Russian academy’s journal, in which he published during this period nearly as many papers as in the Mémoires of the Berlin Academy of Sciences. He carried on an extensive correspondence dealing with scientific and organizational matters in particular, he corresponded with M. Petersburg Academy of Sciences, of which he remained an honorary member. While living in Berlin, Euler continued to work intensively for the St. In his 25 years in Berlin, Euler produced approximately 300 works, including several large monographs. He ran the academy for several years after the death of its first president, P. In Berlin, Euler was appointed director of the academy’s mathematics class and a member of the board. In 1741, Euler accepted an invitation from Frederick II, the king of Prussia, to join the Berlin Academy of Sciences, which Frederick was planning to form from the academy founded by G. In addition to writing the popular Einleitung in die Arithmetik (Introduction to Arithmetic 1738–40 Russian translation, parts 1–2, 1740), he prepared, at the academy’s request, Scientia navalis (Naval Science parts 1–2, 1749), a basic work on the theory of shipbuilding and navigation. He gave courses at the Academy University, was a member of several commissions of technical experts, and worked on the compilation of maps of Russia. He learned Russian in this period.Įuler took part in various activities of the academy. Petersburg period of his life, he prepared approximately 80 works for publication and published more than 50. ![]() The academy, which had just been organized, provided him with favorable conditions for scientific work, and he immediately undertook research in mathematics and mechanics. Petersburg Academy of Sciences, and in May 1727 he arrived in St. In late 1726, Euler was offered a position at the St. Euler studied at the University of Basel, where he attended the mathematics lectures of Johann Bernoulli. Mathematician, physicist, and mechanics specialist.Įuler received his initial education from his father, Paul Euler, a village pastor of modest means who as a young man had studied mathematics under Jakob Bernoulli. 4 (15), 1707, in Basel, Switzerland died Sept. Among his results are the differential equation named for him, the formula relating the number of faces, edges, and vertices of a polyhedron ( F + V = E + 2), and the famous equation e iπ + 1 = 0 connecting five fundamental numbers in mathematics.īorn Apr. Though half-blind for much of his life and totally blind for the last seventeen years, he retained to the end a near-legendary skill at calculation. Euler was one of the first to develop the methods of the calculus on a wide scale. ![]() He contributed to numerous areas of both pure and applied mathematics, including the calculus of variations, analysis, number theory, algebra, geometry, trigonometry, analytical mechanics, hydrodynamics, and the lunar theory (calculation of the motion of the moon). Euler was the most prolific mathematician who ever lived his collected works run to more than seventy volumes. He was invited to Berlin (1741) by Frederick the Great and remained there until 1766, when he returned to St. Petersburg (1727) at the invitation of Catherine I, becoming professor of mathematics there on the departure of Daniel Bernoulli (1733). Born and educated at Basel, where he knew the Bernoullis, he went to St. Euler, Leonhard (lāˈônhärt oiˈlər), 1707–83, Swiss mathematician.
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