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Books & Manuscripts
Lot 40:
VLACQ (Adriann) & BRIGGS (Henry)
TRIGONOMETRIA Artificialis. Sive Magnus canon triangulorum logarithmicus, ad radium 10000000,00000, & ad dena Scrupula Secunda, ab Adriano Vlacco Goudano Constructus. Cui Accedunt Henrici Briggi Geometriæ Professoris […] Logarithmorum Viginti pro numeris naturali serie crescentibus ab Vnitate ad 20000. Quorum ope Triangula Plana & Sphærica, inter alia Nova eximiaque compendia è Geometricis fundamentis petita, folâ Additione, Subtractione, & Bipartitione, exquisitissimè dimetiuntur. Goudæ: Excudebat Petrus Rammasenius, 1633.
+4, A-F4, G2, a4, b-z6, A-L6, M2; [8], 52, [408] pp.: il.; 350 mm. Full calf; spine with loss of leather on top and bottom; red edges; stained.
Dutch editor Adriann Vlacq (1600-1667) published his tables containing logarithms of the six trigonometric functions to 10 decimal places for every 10 seconds of the quadrant and are a continuation of another work entitled Arithmetica logarithmica which contained the same functions for the same decimal places, but for every minute. The work is preceded by a theoretical part that is based on the work of Henry Briggs (1561-1630), an important British mathematician who dedicated himself to logarithms since their discovery by John Napier and with whom he worked and worked on the construction of tables. Rare.
Translated by Google Translate.
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