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DORMOY, Théorie Mathématique des assurances sur la vie, 1878
DORMOY, Emile.
Théorie Mathématique des assurances sur la vie.
Paris, Gauthier-Villars, 1878.
Two volumes 8vo (252x160 mm), viii-312 pages / (8)-328 pages. binding : Contemporary quarter sheep, flat spines. Caps worn. Second joint on second volume splitted. First flyleaves are missing.
First edition.
Emile Dormoy, a Polytechnique and mining engineer, will manage the Soleil-Vie insurance company.
He leaves us this important treatise on mathematics for the use of actuaries in which he notably devotes a chapter to the Theory of deviations.
He describes there before Wilhelm Lexis what will be known as the "Lexis Ratio".
The law of deviations subsequently developed by Bachelier will be one of the bases of financial mathematics.
references: Porter ["The Rise of Statistical Thinking", 2020, p.245 : "I had occured to Emile Dormoy that the variation in statistical series could be compared with that predicted by combinatorial formulas to decide whether the events in question were in fact independant of one another"].
provenance: Bookplate.
Price : 450 €
European VAT number: FR87515091171
© Eric Zink, Antiquarian Bookseller