Louis François Antoine Arbogast
Louis François Antoine Arbogast is a Mathématicien French, born with Mutzig (Alsace) the October 4th 1759 and died in Strasbourg (France) the April 18th 1803.
He was professor of Mathématiques to the college of Colmar and taken share with a mathematical competition launched by the Academy of Saint-Pétersbourg. That brought the celebrity to him and an important place in the history of the development of calculation. Arbogast subjected a test to the Academy of Saint-Pétersbourg in whom it lines up side of Euler. In fact it further went than Euler in the type of arbitrary functions introduced by Intégration, applicant that not only the functions could be discontinuous in the limited direction of Euler, but discontinuous in a direction more general than it defines as making it possible functions to be portions various curves. Arbogast gained the price with its test and its concept of discontinuous function became important in the more rigorous analytical approach of Cauchy.
In 1789 it submitted to Strasbourg a major report/ratio on the differential Calculus and integral with the Academy of Science of Paris which was never published. Later, in the foreword of a work it describes the ideas which pushed it to write this major report/ratio. It realized primarily that there was no rigorous method which went with the convergence of the series, and the career of Arbogast was propelled upwards. In addition to its station of mathematics, he was professor of physique to the Royal College of Strasbourg and he was used for it as vice-chancellor as from April 1791, until October 1791 when he was named vice-chancellor of the University of Strasbourg; in 1794 he became Professor de Calcul at the Central School (which was going soon to become the Polytechnic school) but he taught at the Preparatory School.
Its contributions to mathematics show how a philosopher must face his time. Also, although it introduced the discontinuous functions, as we say it previously, it conceived calculation like bearing on operational symbols. The formal algebraic handling of the series, on which worked Lagrange and Laplace in the years 1770, was formatted equalities of operators by Arbogast in 1800. One owes him the general concept of Factorielle as a product of a finished number of terms in arithmetic progression.
Deputy of the Low-Rhine to the national Convention on September 21st, 1792.
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