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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…

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Overview

John NapierMerchistonScotlandCalculationQuotients
24 related topics

Genaille–Lucas rulers

Henri GenailleGenaille–Lucas rulersCarry
3 related topics

Multiplication

SequenceSummed
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Extracting square roots

Long divisionRounding
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Overview

Multiplication

Division

Extracting square roots

Genaille–Lucas rulers

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Napier's bones

Nodes38
Edges37
Triples23
Avg. degree1.95
Density0.052632
Components1

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Napier's bones

Top relations

related to Genaille–Lucas rulers · 7
Napier's bones → By, Genaille, Henri Genaille, In, Lucas, Napier's, The
related to Diagonal modification · 5
Napier's bones → During, In, Napier's, The, Thus
related to External links · 5
Napier's bones → Media, Napier, Napier's, Wikimedia CommonsWolfram Demonstration, Wiktionary-logo-en-v2
related to Multiplication by a small single-digit number · 5
Napier's bones → For, In, Napier's, The, These
is a · 1
Napier's bones → manually operated calculating device created by John Napier of Merchiston

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Important terminology

number square multiplication row digits digit rods bones board numbers example left diagonal remainder root column napier's first right two

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Napier's bonesis amanually operated calculating device created by John Napier of Merchiston0.90text
Napier's bonesrelated to Diagonal modificationDuring0.60section
Napier's bonesrelated to Diagonal modificationNapier's0.60section
Napier's bonesrelated to Diagonal modificationThe0.60section
Napier's bonesrelated to Diagonal modificationIn0.60section
Napier's bonesrelated to Diagonal modificationThus0.60section
Napier's bonesrelated to External linksWiktionary-logo-en-v20.60section
Napier's bonesrelated to External linksMedia0.60section
Napier's bonesrelated to External linksNapier's0.60section
Napier's bonesrelated to External linksWikimedia CommonsWolfram Demonstration0.60section
Napier's bonesrelated to External linksNapier0.60section
Napier's bonesrelated to Genaille–Lucas rulersIn0.60section

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