565
565
Rheticus, Georg Joachim (1514-1574)
CANON DOCTRINAE TRIANGULORUM. LEIPZIG: WOLFGANG GÜNTHER, 1551
Estimate
20,00030,000
LOT SOLD. 25,000 GBP
JUMP TO LOT
565
Rheticus, Georg Joachim (1514-1574)
CANON DOCTRINAE TRIANGULORUM. LEIPZIG: WOLFGANG GÜNTHER, 1551
Estimate
20,00030,000
LOT SOLD. 25,000 GBP
JUMP TO LOT

Details & Cataloguing

The Erwin Tomash Library on the History of Computing

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London

Rheticus, Georg Joachim (1514-1574)
CANON DOCTRINAE TRIANGULORUM. LEIPZIG: WOLFGANG GÜNTHER, 1551
FIRST EDITION, 4to (213 x 142mm.), 12 ff., printed in red and black, title with woodcut printer's device of an obelisk, modern calf with gilt fleurons, cut close with edges of tables shaved
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Provenance

bought from Simon Finch, London, 1998

Literature

Tomash & Williams R80; Burmeister, Rhetikus VI.38; USTC 617832; VD16 J272 (listing 6 copies)

Catalogue Note

RARE. The tables in the first eight leaves contain the first publication of all six trigonometric functions, designed to serve as an introduction to Rheticus' planned larger work on triangles, which was finally published in 1596 (see lot 566). The final four leaves of text contain a humanist dialogue between Hospes (a guest) and Philomathes, who represents Matthias Stojus, a pupil of Rheticus who also wrote the verse preface to this work (signed "Philomathes" in Greek). They discuss the importance of the geometry of triangles, in particular with reference to Copernicus, whose astronomical work Rheticus considers perfect.

The Erwin Tomash Library on the History of Computing

|
London