# Mathematician:Georg Joachim Rhaeticus

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## Mathematician

Austrian mathematician who was the sole pupil of Nicolaus Copernicus.

Calculated a table of sines accurate to $10$ decimals.

## Nationality

Austrian

## History

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

## Publications

- 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*(posthumous)

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: David Nelson:
*The Penguin Dictionary of Mathematics*(4th ed.) ... (previous) ... (next): Entry:**Rheticus, Georg Joachim**(1514-76) - 2008: Ian Stewart:
*Taming the Infinite*... (previous) ... (next): Chapter $5$: Eternal Triangles: Early trigonometry