Lot 369 of 443:
Theories by the creator of normography  

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Traite de nomographie. Théorie des abaques.

d’Ocagne, Maurice





xiii, [1], 480 pp. Numerous text illustrations. Octavo, rebound in quarter calf over marbled boards. Old printed bookplate preserved. 

This work was preceded by a ninety-one page pamphlet, published the same year. This is a fuller explication of the ideas discussed there. The use of graphic schemes for computation goes back to antiquity. The graphic solution of spherical triangles was in use in the time of Hipparchus, 150 B.C., and simple charts were signed by the mathematicians of the Middle Ages. The publication of René Descartes’s Discours de la méthode (1637), which introduced analytic geometry to the world, gave a powerful impetus to graphical methods and provided their analytical background. However, the construction of nomograms remained an art, more than a science, until the pioneering work of Maurice d’Ocagne (1862-1938) of the Ecole Polytechnique in Paris. “He developed the subject in many papers and books and particularly in his treatise of 1899, Traité de nomographie, in which were brought together both the general theories and a multitude of practical applications. D’Ocagne may be properly called the creator of nomography” (Encyclopedia Britannica, “Nomography” article, 1961). Cajori, p. 481-2.

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A very good, clean copy, in a handsome new binding.

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