MYDORGE (Claude).

Lot 267
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Estimation :
2000 - 3000 EUR
MYDORGE (Claude).
Prodromi catoptricorum et dioptricorum sive conicorum operis. Paris, Dedin, 1641. In-folio, wove vellum, smooth spine decorated with gold filets, red cloth (contemporary binding). DSB, t. IX, p. 598. First complete edition of the four books, published in 1639: copy of second issue, with a reconstructed and rejuvenated title page. The first two books had first appeared in 1631. A major work of pure geometry. The mathematician Claude Mydorge (1585-1647), a friend of Descartes and in relation with Pascal's father, was the first in France to write a treatise on conical sections (Chasles, Aperçu historique... géométrie, 1837, p. 88). He undertook to simplify the complex demonstrations of the Ancients. His treatise contains hundreds of unpublished problems, as well as a multitude of original solutions to solve them. Ancient stamp on the title. A copy in period binding, rooted and decorated on the spine at the very end of the 18th century, in order to standardize the decoration of the volume with the rest of a library. Tiny trace of a worm at the corner of three leaves at the beginning of the volume. Most of the notebooks are uniformly browned, as is often the case
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