Wessel t e (7 Ergebnisse)

Zustand: New. In English.

Trade Paperback. Zustand: Acceptable. Prompt Shipment, shipped in Boxes, Tracking PROVIDEDAcceptable paperback; 8 vo; spiral spine bidning; tips bumped; signature from previous owner on the front cover; some stains on front cover; prompt shipping with tracking.

Hardcover. 1st Edition. Lot of 2 books. Quarto. Pp. 265, (14). Profusely illustrated throughout. Numerous colour plates tipped-in. HARDCOVER, bound in the original publisher's full cloth with very good dust-jacket. In fine condition. ~ FIRST EDITION. [ADDED:] Klaus Wessel: "Christentum am Nil." Recklinghausen, Aurel Bongers, 1964. Quarto. Pp. 288, (4). Profusely illustrated throughout. HARDCOVER, bound in the original publisher's cloth. In a very good condition. 001-00. ~ ~ NOTE: THE PRICE OF THIS BOOK IS CURRENTLY REDUCED! ~ ~ (illustrator). …

Koppernik, 2021. Eerste druk. Paperback / Softcover. 501 pag. - ALS NIEUW [Literatuur / Eerste druk [Nederlandse Literatuur] ].

Kiøbenhavn, Johan Rudolph Thiele, (1797) 1799. 4to. Uncut and unopened in original blue boards. Published in: "Nye Samling af det Kongelige Danske Videnskabernes Selskabs Skrifter." Vol. V. Wessel's paper: pp.469-518 and 3 folded engraved plates (the last plate inserted at p. 463). The whole volume V offered in its original binding. Engraved titlevignette. XII,670 pp., 15 engraved plates. 4 leaves with upper right corners gone, not affecting Wessel's paper. First edition of this important first systematical treatment of the theory of complex numbers and at the same time, the first work to add vectors in three-dimensional space."Wessel?s fame as a mathematician is based entirely on one paper, written in Danish and published in the Mémoires of the Royal Danish Academy, that established his priority in publication of the geometric representation of complex numbers. John Wallis had given a geometric representation of the complex roots of quadratic equations in 1685" Gauss had had the idea as early as 1799 but did not explicitly publish it until 1831. Robert Argand?s independent publication in 1806 must be credited as the source of this concept in modern mathematics because Wessel?s work remained essentially unknown until 1895, when its significance was pointed out by Christian Juel. The title of Wessel?s treatise calls it an "attempt" to give an analytic representation of both distance and direction that could be used to solve plane and spherical polygons. The connection of this goal with Wessel?s work as a surveyor and cartographer is obvious. The statement of the problem also suggests that Wessel should be credited with an early formulation of vector addition. In fact, Michael J. Crowe, in A History of Vector Analysis (University of Notre Dame Press, 1967), defines the first period in that history as that of a search for hypercomplex numbers to be used in space analysis and dates it from the time of Wessel, whom he calls the first to add vectors in three-dimensional space." (DSB).…

Kiöbenhavn, Godiches Efterleverske, 1775. Samtidigt marmoreret hellæderbind. Rig rygforgyldning. Forgyldt skindtitel. Brud i forreste fals således at forpermen er løs. 134 pp. På skrivepapir. Lette spredte brunpletter. Heri 2 originaltryk af Johan Herman Wessel (Sövnen og Nöysomhed), af Edvard Colbiörnsen (Foraaret), af Charlotte Dorothea Biehl (Brev fra Waldborg Immers Datter til hendes Veninde) m.fl."Et Selskab, som har faaet Navn af det Norske, fordi det bestod fornemmelig i Begyndelsen af Nordmænd, blen eenige om at udsette smaa Præmier for dem af dets Medlemmer. som gjorde de bedste Vers. Af de indkomne Stykker har Selskabet troet, at nogle fortiene at trykkes, og a disse bestaaer fölgende Samling." (verso af titelbladet).…

(København), 1771. (59 x 69 cm.). Kobberstukket kort over Nordøstsjælland. Opdelt i 24 sektioner og opsat på lærred således, at det ved foldning let kunne medbringes. Det første videnskabelige kort over Nordøstsjælland, som den første udgvne del af Wessels berømte Sjællands-kvartet udgivet af Videnskabernes Selskab. Da kortet udkom var det den mest præcise kortprojektion overhovedet, idet Wessel anvendte sin opdagelse vedrørende de komplekse tal. Dette kort er det første og mest eftertragtede af Videnskabernes Selskabs opmåling af Danmark.Bibl.Danica II,603. - Bramsen p. 146, gengivet.…