New Delhi: Commemorating the 306th birth anniversary of Leonhard Euler, Google has posted a doodle on its homepage that features geometric shapes and mathematical calculations on a paper strip. but who was Leonhard Euler?
Born on born April 15, 1707, in Basel, Switzerland, Leonhard Euler was the Swiss mathematician and physicist. Leonhard Euler's major contributions were in the fields of geometry, calculus, mechanics and number theory. His works also extended to observational astronomy.
Euler worked in almost all areas of mathematics: geometry, infinitesimal calculus, trigonometry, algebra, and number theory, as well as continuum physics, lunar theory and other areas of physics. He is a seminal figure in the history of mathematics
Euler is believed to be the only mathematician to have two numbers named after him - the Euler's Number in calculus, e, approximately equal to 2.71828, and the Euler-Mascheroni Constant ? (gamma) sometimes referred to as just "Euler's constant", approximately equal to 0.57721.
Also, Euler introduced several notational conventions through his numerous and widely circulated textbooks. His best known books include: Elements of Algebra. Introduction in analysin infinitorum (1748). Institutiones calculi differentialis (1755) and Institutionum calculi integralis (1768-1770).
Euler also helped in developing the Euler-Bernoulli beam equation, which later became a cornerstone of engineering.
A collection of Euler's works, entitled Opera Omnia, has been published since 1911 by the Euler Commission of the Swiss Academy of Sciences. Euler was featured on the sixth series of the Swiss 10-franc banknote and on numerous Swiss, German, and Russian postage stamps.
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