E858  Lettres inédites d'Euler a d'Alembert
(Unpublished letters from Euler to d'Alembert)
Summary:
The six letters are dated: April 15, 1747 (p. 137140),
August 19, 1747 (p. 140142), December 30, 1747 (p. 143), September 28, 1748 (p. 144145),
December 27, 1748 (p. 146147), undated [1749] (p. 147148). The originals are found in the
library of the Paris Academy of Science.
Publication:

Originally published by Ch. Henry in his article: "Lettres inédites d’Euler à d’Alembert";
Bullett. di bibliogr. d. sc. matem. 19, 1886, p. 136148.

Opera Omnia: ??
Documents Available:
 Original Document: E858
 A partial English translation appeared in "History of the Exponential and Logarithmic Concepts. III. The Creation of a Theory of Logarithms of Complex Numbers by Euler," Amer. Math. Monthly 20, No. 3, pp. 7584. Available via Archive.org: E858
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