Jean le Rond d'Alembert

Jean le Rond d'Alembert FRS
Pastel portrait of d'Alembert by Maurice Quentin de La Tour, 1753
Born	Jean-Baptiste le Rond d'Alembert (1717-11-16)16 November 1717 Paris, France
Died	29 October 1783(1783-10-29) (aged 65) Paris, France
Nationality	French
Alma mater	University of Paris
Known for	D'Alembert criterion D'Alembert force D'Alembert operator D'Alembert reduction D'Alembert system D'Alembert's form of the principle of virtual work D'Alembert's formula D'Alembert's equation D'Alembert's functional equation D'Alembert's paradox D'Alembert's principle D'Alembert's theorem D'Alembert–Euler condition Tree of Diderot and d'Alembert Cauchy–Riemann equations Fluid mechanics Encyclopédie Three-body problem
Awards	ForMemRS (1748)
Scientific career
Fields	Mathematics Mechanics Physics Philosophy
Notable students	Pierre-Simon Laplace

Jean-Baptiste le Rond d'Alembert^[1] (/dæləmˈbɛər/ dal-əm-BAIR;^[2] French: [ʒɑ̃ batist lə ʁɔ̃ dalɑ̃bɛːʁ]; 16 November 1717 – 29 October 1783) was a French mathematician, mechanician, physicist, philosopher, and music theorist. Until 1759 he was, together with Denis Diderot, a co-editor of the Encyclopédie.^[3] D'Alembert's formula for obtaining solutions to the wave equation is named after him.^[4][5][6] The wave equation is sometimes referred to as d'Alembert's equation, and the fundamental theorem of algebra is named after d'Alembert in French.