Suchergebnisse
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Vor 5 Tagen · Friedrich Wilhelm Bessel; deutscher Astronom (1784-1846). Benannt seit: 1935 : Alle Nebenkrater im Überblick. Bessel D: Bessel F: Bessel G: Bessel H: Detailkarte des Hauptkraters mit allen Nebenkratern Für eine hochauflösende Ansicht i ...
Vor 2 Tagen · Introduction to Linear Algebra with Mathematica. Glossary. Preface. In this section, we show that Bessel's functions. ϕn(x) = Jν(μnx ℓ) (n = 1, 2, 3, …) are orthogonal when parameters μ n are positive roots of some transcendent equation involving Bessel functions of the first kind. Orthogonal means that.
Vor 6 Tagen · The systematic analysis of solutions to equation (1) was conducted around 1817 by the German astronomer Friedrich Wilhelm Bessel (1784--1846) during an investigation of solutions of one of Kepler’s equations of planetary motion.
Vor 3 Tagen · TOPICS. Algebra Applied Mathematics Calculus and Analysis Discrete Mathematics Foundations of Mathematics Geometry History and Terminology Number Theory Probability and Statistics Recreational Mathematics Topology Alphabetical Index New in MathWorld
Vor 2 Tagen · Bessel generating functions. Peter Andreas Hansen (1795--1874), a German astronomer, was the first who discovered in 1843 the generating function for the Bessel functions of the first kind: ex(z−1/z)/2 = ∑n=−∞∞ znJn(x) e x ( z − 1 / z) / 2 = ∑ n = − ∞ ∞ z n J n ( x) Hansen became director of the Seeberg Observatory, near ...
Vor 2 Tagen · Friedrich Wilhelm Bessel n’a pas découvert ses fameuses fonctions par hasard. Il était avant tout un astronome passionné. En 1838, il a été le premier à mesurer la distance d’une étoile en dehors de notre système solaire en utilisant la parallaxe stellaire. Cette étoile, 61 Cygni, est désormais connue sous le nom de “l’étoile de Bessel”.
Vor 4 Tagen · When Gauss was asked for help by his colleague and friend Friedrich Wilhelm Bessel in 1810, who was in trouble at Königsberg University because of his lack of an academic title, Gauss provided a doctorate honoris causa for Bessel from the Philosophy Faculty of Göttingen in March 1811.
