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2020-07-23 09:35:04
YPEY, Nicolaas.
Grondbeginzelen der kegelsneeden, bevattende de eerste en voornaamste eigenschappen van de parabola, ellips en hyperbola. Ten dienste der leerlingen opgesteld.Amsterdam, Yntema and Tieboel, 1769. 8vo. With 7 engraved folding plates, head- and tailpieces built up from cast typographic ornaments. Contemporary half calf, sprinkled-paper sides.
XXVIII, 68 pp.First and only edition of an acclaimed textbook on conic sections by Nicolaas Ypey (1714-1785), professor of mathematics and fortification at Franeker. It opens with a preface by Pibo Steenstra, whose Grondbeginselen der meetkonst (1771) reflected Ypey's mathematical lectures. Divided into three chapters it treats respectively the parabola, the ellipse and the hyperbola. Ypey published several works on fortification and applied mathematics and was influenced by the important Frisian hydraulic engineer Willem Loré.Several water stains, plates frayed, otherwise in good condition.l Bierens de Haan 5421; Sloos, Warfare 14171; STCN (8 copies); for Ypey: NNBW V, cols. 1161-1162.
Bookseller: ASHER Rare Books (Since 1830) [Netherlands]
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