His collected works fill 60 to 80 quarto volumes, more than anybody in the field. He was plagued by deteriorating eyesight which rendered him almost blind, yet his productivity never suffered.Įuler is also widely considered to be the most prolific mathematician of all time. Two numbers are named after him: Euler’s Number in calculus, e, and Euler-Mascheroni Constant, γ also called “Euler’s constant”. A prolific mathematician, his works cover several areas of the subject such as algebra, geometry, calculus, and trigonometry and number theory. Throughout his working career, Euler authored several textbooks and memoirs in which he introduced many concepts, especially in the area of mathematical analysis. Euler’s father wanted to prepare him for a career in theology and it was Bernoulli who persuaded his friend to let the boy study mathematics. As luck would have it, Johann Bernoulli, Europe’s foremost mathematician of his time, was a friend of Leonhard’s father and the influence of this great mathematician on the young Leonhard was immense. Euler’s interest in mathematics stemmed from his childhood when his father would teach him the subject. Many concepts of modern mathematics originated from the works of this eminent mathematician whose works also spanned the fields of mechanics, fluid dynamics, optics, and astronomy. He is also known for his work in mechanics, fluid dynamics, optics, astronomy, and music theory. He also introduced much of the modern mathematical terminology and notation, particularly for mathematical analysis, such as the notion of a mathematical function. He not only made decisive and formative contributions to the subjects of geometry, calculus, mechanics, and number theory but also developed methods for solving problems in observational astronomy and demonstrated useful applications of mathematics in technology and public affairs. 1776-1783)Ĭhildren: Johann Euler, Christof Euler, Charlotte Euler, Karl Euler, Helene EulerĪ Swiss mathematician and physicist, one of the founders of pure mathematics, Leonhard Euler were born on 15 April 1707, in Basel, Switzerland to Paul III Euler, a pastor of the Reformed Church, and Marguerite née Brucker, a pastor’s daughter. In 1773, his wife of 40 years, Katharina died, and three years later, he married Salome Abigail Gsell, his wife’s half-sister.Spouse/Ex: Katharina Gsell (m. As part of the deal, he was offered a 3,000 ruble annual salary, high-ranking appointments for his sons and a pension for his wife. During this time, political stability had been restored in Russia. In 1766, Leonhard Euler was again invited and went back to St. Because his mind remained highly agile, he, with some assistance, continued his scientific work and even published scores of articles. The loss of his sight, however, did not affect him. After an operation, he failed to allow for proper recuperation, and as a result, he completely lost his sight in early the 1770s. Unfortunately, all but five of their children died in their childhood.ĭue to his cartography work, Euler suffered overexertion and fever which hampered his ability to see with his left eye and later developed a cataract in his right eye. The couple lived by the Neva River in a house they bought after marriage and were blessed with a total of 13 children. Leonhard Euler married his wife, and the daughter of George Gsell, Katharina Gsell on 7th January 1734. He was the first child of his parents and had two sisters, Ann Maria and Maria Magdalena, and a brother, Johann Heinrich who also became a mathematician. Leonhard Euler was born on April 15th, 1707 in Basel, Switzerland to Reverend Paul Euler, a pastor of the Reformed Church, and his wife Marguerite Brucker, a pastor’s daughter. He worked in trigonometry, geometry, algebra, number theory among others (almost all areas of mathematics).Īpart from his contributions to mathematics, Leonhard Euler is also known for his excellent work in fluid dynamics, mechanics, music theory and astronomy. Having developed many concepts that are part of modern mathematics, including graph theory and infinitesimal calculus, together with his contributions to several branches like analytic theory and topology, Euler was, indeed, a great scholar. He is one of the rare mathematicians who is revered even by Physicists. Many people around the world unanimously agree that Leonhard Euler was not only the greatest mathematician of the 18th Century but also the most prolific of all time.
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