Broché sous couverture éditeur. Un volume in-8 (255x166 mm), (6)-96-(1) pages et 8 planches. Couverture abimée. Edition originale. Première publication de D'Ocagne sur la nomographie. Maurice d'Ocagne (1862-1938) est un ingénieur et mathématicien français. Il est le promoteur en France d'une méthode de résolution graphique d'équations algébriques par l'emploi d'abaques, qu'il appela nomographie. Provenance : Tampons anciens de bibliothèque. References : DSB [X, 170 :" In 1912, D'Ocagne was appointed professor of geometry at the Ecole Polytechnique. He was elected to the Académie des Sciences (1922). Active both as researcher and teacher, D'Ocagne published a great many articles, mostly on geometry, in mathematical journals and in the Comptes rendus de l'Académie des sciences.". ]. ___________________________________________________________________________________ ______________________________ENGLISH_DESCRIPTION : Original printed wrappers. 8vo (255x166 mm), (6)-96-(1) pages and 8 plates. Cover worn. First edition. D'Ocagne's first publication on nomography. Maurice d'Ocagne (1862-1938) was a French engineer and mathematician. He is the promoter in France of a method of graphic resolution of algebraic equations using abacuses, which he called nomography. Provenance : Tampons anciens de bibliothèque. References : DSB [X, 170 :" In 1912, D'Ocagne was appointed professor of geometry at the Ecole Polytechnique. He was elected to the Académie des Sciences (1922). Active both as researcher and teacher, D'Ocagne published a great many articles, mostly on geometry, in mathematical journals and in the Comptes rendus de l'Académie des sciences.". ]. 250g.