Deutsch: Ein
Abakus ist Hilfsmittel zum Ausführen verschiedener Rechenoperationen.
English: An
Abacus is a calculation tool.
Galego: Un
ábaco é un instrumento de cálculo.
Norsk nynorsk: Ei
Kuleramme er eit reknehjelpemiddel.
Русский: Абак, счёты.
Overview [edit]
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Danish abacus from an elementary school.
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Reconstruction of a Roman abacus
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History [edit]
Abacus in Ancient pictures [edit]
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Roman abacus from 1911 Encyclopedia Britannica
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Reconstruction of Roman Abacus, made by RGZ Museum Mainz in 1977
Abacus in Medieval pictures [edit]
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Monastic abacus, 10-12th century
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Abacus in 16th century pictures [edit]
Abacus in pictures in Modern times [edit]
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2nd quarter of 17th century
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2nd quarter of 17th century
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Specific topics [edit]
Abacus in art [edit]
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Rotschild canticles Septem artes liberales, 13th century
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Types of abacus [edit]
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Positional decimal system on abacus
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The Small Abacus of Al-Khwarizmi [edit]
Addition examples [edit]
See also [edit]