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Canon Doctrinae Triangulorum

by RHETICUS , Georg Joachim

Condition: See description


Woodcut vignette of an obelisk on title. Title & tables printed in red & black. [23] pp. 4to, attractive antique panelled calf (smallish stamp very carefully bleached from verso of title). Leipzig: W. Gunter, 1551. First edition of a great rarity; this epoch-making book contains "the first table to give all six trigonometric functions, including the first extensive table of tangents and the first printed table of secants."-D.S.B., XI, p. 397. These were the first great trigonometric tables ever issued; J.W.L. Glaisher described Rheticus as "by far the greatest computer of pure trigonometrical tables, whose work has never been superseded." This slender quarto does not consist entirely of these trigonometric tables; at the end is a six-page "Dialogus de Canone Doctrinae Triangulorum" by Rheticus. It is presented in the format of a humanist dialogue between Hospes, a guest, and Philomathes, who represents Rheticus's pupil Matthias Stojus, who also wrote the verse preface to this work. This discussion of the "Triquetrum" or trinal aspect in astronomy, and the invaluable use of these tables in mathematical and astronomical calculations, is particularly interesting as it includes an appreciation of Copernicus's mathematical work. We hardly need to point out Rheticus's friendship with Copernicus and his announcement of the forthcoming De Revolutionibus in his Narratio Prima in 1540. As a convinced follower of the new Copernican doctrine, Rheticus carried on the mathematical elaboration of Copernicus's system in the present book. Fine copy of a very rare book; WorldCat locates no copy in North America. Occasional slight cropping of outer margins of tables. ❧ Ernst Weil in E.P. Goldschmidt, Cat. 45, item 157-"One of the greatest rarities of the early literature of pure mathematics." Smith, History of Mathematics, II, pp. 610, 621, 622, & 627. Not in Smith, Rara Arithmetica. Tomash & Williams R80-"This work is also the first to use the semiquadrantal arrangement of tables (in which the table goes from 0 to 45 degrees, and the cofunctions can be found by reading the table backwards), which became the standard for this type of table publishing.".
  • Bookseller: Jonathan A. Hill, Bookseller, Inc. US (US)
  • Bookseller Inventory #: 6750
  • Title: Canon Doctrinae Triangulorum
  • Author: RHETICUS , Georg Joachim
  • Book condition: Used
  • Quantity available: 1
  • Keywords: astronomy, copernicus, mathematics, science, trigonometry


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Glossary

Some terminology that may be used in this description includes:
calf
Calf or calf hide is a common form of leather binding.  Calf binding is naturally a light brown but there are ways to treat...[more]
e.p.
The double leaves bound into a book at the front and rear after ...[more]
quarto
The term quarto is used to describe a page or book size. A printed sheet is made with four pages of text on each side, and the...[more]
fine
A book in fine condition exhibits no flaws. A fine condition book closely approaches As New condition, but may lack the...[more]
verso
The page bound on the left side of a book, opposite to the recto page.
Worldcat
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First Edition
In book collecting, the first edition is the earliest published form of a book. A book may have more than one first edition in...[more]
vignette
A decorative design or illustration placed at the beginning or end of a ...[more]
New
A new book is a book previously not circulated to a buyer. Although a new book is typically free of any faults or defects,...[more]

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