Eucula was born in Basel, Basel, Switzerland, 13 years old, and got the most famous mathematician John Bernoulli, 1667-1748.
Eura Yuanbo's knowledge, endless creative energy and unprecedented works are amazing! He began publishing papers from 19 years old, until the age of 76, half a century wrote a book and papers of Hao Zhaihai. Almost every mathematics field can see the Name of Eu, from the first-class geometric Euler line, multifisor Euler, three-dimensional analytical geometric Eu-pull formula, Euler solution in the four equations to Europe The Euler equation of the pull function, the differential equation, the Euler constant of the grade, the Euler equation, the Euler formula of the retrieval function, and the number are not clear. His contribution to mathematics analysis is more unique, "infinite small analysis] The book is the representative of his epoch, and the mathematician said that he is" analyzing the incarnation ".
Eura is a very outstanding mathematician in the history of scientific history. According to statistics, his tireless life, a total of 886 books and papers, which analyzes, algebra, number atrial accounts for 40%, geometric 18%, physics And mechanics account for 28%, astronomy accounts for 11%, ballistic, aerial school, architecture, etc. 3%, Petersburg Sciences in order to organize his work, is busy for forty-seventh year.
The amazing lot of Euler is not accidental, he can work in any bad environment, he often holds the child to complete the papers in the knee, and nor like the child. His tenacious perseverance and tirelessness spirit, so that he did not stop the study of mathematics after the blindness, in the 17th year of blindness, he also said a few books and 400 papers. The 19th century Gao Si (GAUSS, 1777-1855) once said: "Studying the work of Eura is always the best way to understand mathematics."
Euler's father Paul Euler is also a mathematician, originally hopes that Xiao'a'rat learn theology, and teaches him a little teaching. Due to the Talents and Unusual Spirits of Little Eura, he was attached to the appreciation and special guidance of John Bernu. When he wrote a papers on the boat at the age of 19, after the prize of the Paris Academy of Sciences His father will no longer oppose him to study mathematics.
In 1725, John Bernoulli's son Daniel Bernui went to Russia and recommended El in the world of Caclin, which, on May 17, 1727, Eura came to Petersburg. In 1733, only 26-year-old El was served as Mathematics Professor, Petersburg. In 1735, Euli solved a problem of astronomy (calculating the border track). This problem has been solved by several famous mathematicians for a few months, and Euler has done it in three days. . However, excessive work made him have a disease, and unfortunately, the right eye was blind, and he was only 28 years old. In 1741, Lui Luxed Pede Dali Emperor's invitation, to Berlin, served as Director of Physics Mathematics in the Academy of Sciences, until 1766, and later hired in the sincere and honest in Shathang Kid Forest, returning to Petersburg, not agreed, left eye Vision decline, finally fully blind. Unfortunate things followed, 1771 Petersburg's fire and Euler residential, blindly 64-year-old Ou was hiered in the fire, although he was saved by others from the fire sea, but his study And a large number of research results are all turned into ashes. The heavy blow, still did not put the Euler, and he vowed to take the loss back. Before he was completely blind, he also saw things, he grabbed this last time, in a big blackboard, the formula he found on a big blackboard, then orally orally, by his student, especially the son A Ou La (Mathematics Home and physicist) the transcript. After Eula is completely blind, it is still struggling with the amazing perseverance and the darkness, with memory and heart calculation, until the death, it has been in 17 years.
Euler's memory and heart accounting ability are rare. He can repeat the content of the annual tasting note, and the heart calculates that simple operations, and the higher mathematics can be done with heart. One example is enough to explain his skills. Two students of Eula add a complex convergence level of 17 items, calculated to the 50th number, two people differ in one unit, Euler in order to determine who is right, use Heart accounts for all operations, and finally found the error. Euler is in the blindness of 17 years; also solved the monthly proof of Newton's headache and a lot of complex analysis issues.
The style of Eura is very high, Lagranda is a general solution from the Euler's large mathematician, from the age of 19 and the Euler, discussing the general solution of weeks, which causes the deterioration method. The problem is the problem of the painful considering of Eucot, Lagrang's solution, Bo Deura warmly praised, October 2, 1759, Ou La said in reply, said, and modestly Pressing yourself in this regard, you will not post it, so that the work of Lagranga's work is published and spread, and won the huge reputation. When he was in his later years, all the mathematicians in Europe took him as a teacher, and the famous mathematician Laplace has said: "Euler is our tutor." Euler will maintain the last moment, On the afternoon of September 18, 1783, in order to celebrate him to celebrate the success of the balloon, ask the friends to eat, then the King Xing has found shortly, Euler wrote the essentials of the Calculatory Tians Star Track, and smoked with his grandson. After drinking tea, suddenly the disease episodes, the smoking stripes fall from the hands, muttered in the mouth: "I am dead", Euler finally "stop life and calculation".
