About Napier's bones

Napier's bones is a manually operated calculating device created by John Napier of Merchiston, Scotland for the calculation of products and quotients of numbers. The method was based on lattice multiplication, and also called rabdology, a word invented by Napier. Napier published his version in 1617. It was printed in Edinburgh and dedicated to his patron Alexander Seton.

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Facts from Wikidata (CC0). Image by Kim Traynor via Wikimedia Commons (CC BY-SA 3.0).

Napier's bones

mathematical instrument invented by John Napier

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Facts from Wikidata (CC0). Image by Kim Traynor via Wikimedia Commons (CC BY-SA 3.0).

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Napier's bones across IJR

Ask Genius by OpenServe about Napier's bones Create in Studio Build a game Watch videos