London, South Kensington
8 October 1999
LAGRANGE, Joseph Louis. Thorie des fonctions analytiques contenant les principes du calcul diffrentiel, dgags de toute considration d'infinement petits ou d'vanouissans, de limites ou de fluxions ..., Paris: l'Imprimerie de la Rpublique, an V . 4, half title (lacking the final blank, occasional lightly spotting), later calf-backed boards.
FIRST EDITION, variant B (containing 277 pages). Lagrange attempted to show that power series expansions are sufficient to provide differential calculus with a solid foundation. It dominated the study of the functions of a complex variable throughout the nineteenth century. Norman 1258.
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