# Mathematician:Adam Ries

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## Mathematician

Influential German mathematician who wrote some important instructional works, including sets of tables for calculations.

## Nationality

Bavarian

## History

- Born: 17 January 1492 in Bad Staffelstein, Bavaria (now part of Germany)
- Died: March 30, 1559 in Annaberg, Saxony (now part of Germany)

## Publications

- 1518:
*Rechnung auff der linihen*: describing use of a calculating board, a kind of abacus - 1522:
*Rechnung auff der linihen und federn*: describing and explaining algorism - 1524:
*Coß*(printed in 1992): an algebra textbook, connecting between medieval and modern algebra - 1533:
*Ein Gerechent Büchlein/ auff den Schöffel/ Eimer/ vnd Pfundtgewicht...*(printed in 1536) (also known as*Annaberger Brotordnung*): calculating tables - 1550:
*Rechenung nach der lenge/ auff den Linihen vnd Feder*. (1550) (also known as*Practica*)

## Also known as

His name is also rendered **Adam Riese**.

He himself sometimes used **Risz**. **Ris** and **Ryse** are also found.

## Sources

- 1986: David Wells:
*Curious and Interesting Numbers*... (previous) ... (next): $10$ - 1997: David Wells:
*Curious and Interesting Numbers*(2nd ed.) ... (previous) ... (next): $10$