# Mathematician:Georg Joachim Rhaeticus

## Mathematician

Austrian mathematician who was the sole pupil of Nicolaus Copernicus.

Calculated a table of sines accurate to $15$ decimals.

## Nationality

Austrian

## History

- Born: 16 February 1514 in Feldkirch, Austria
- Died: 4 December 1574 in Kassa, Hungary (now Kosice)

## Books and Papers

- September 1539:
*First report to Johann Schöner on the Books of the Revolutions of the learned gentleman and distinguished mathematician, the Reverend Doctor Nicolaus Copernicus of Torun, Canon of Warmia, by a certain youth devoted to mathematics* - August 1541:
*Tabula chorographica auff Preussen und etliche umbliegende lender*(Map of Prussia and Neighboring Lands) - 1596:
*Opus Palatinum de triangulis*

Facilitated the publication of *De Revolutionibus Orbium Coelestium* (On the Revolutions of the Heavenly Spheres) by Nicolaus Copernicus

## Also known as

Full name: **Georg Joachim von Lauchen Rhaeticus** (often rendered **Rheticus**).

## Sources

- John J. O'Connor and Edmund F. Robertson: "Georg Joachim Rhaeticus": MacTutor History of Mathematics archive

- 2008: Ian Stewart:
*Taming the Infinite*... (previous) ... (next): Chapter $5$: Eternal Triangles