Napier's bones
E478027
Napier's bones are a manually operated calculating device using numbered rods to simplify and speed up multiplication and division.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
calculating device
ⓘ
manual calculating aid ⓘ |
| alternativeName |
Napier's rods
NERFINISHED
ⓘ
Napierian bones NERFINISHED ⓘ |
| basedOn | decimal number system ⓘ |
| calculationType |
digit-by-digit multiplication
ⓘ
lattice-style multiplication ⓘ |
| computationalComplexity | reduces multiplication to addition and reading off partial products ⓘ |
| computingMethod |
repeated addition
ⓘ
use of multiplication tables ⓘ |
| countryOfOrigin | Scotland ⓘ |
| describedIn | Rabdologiae NERFINISHED ⓘ |
| era | early 17th century ⓘ |
| fieldOfUse |
arithmetic
ⓘ
astronomy ⓘ commerce ⓘ mathematics ⓘ |
| hasEducationalUse |
teaching arithmetic algorithms
ⓘ
teaching multiplication ⓘ teaching place value ⓘ |
| hasInfluenced |
logarithmic computation methods
ⓘ
mechanical calculators ⓘ slide rule ⓘ |
| hasPart |
multiplication table strips
ⓘ
numbered rods ⓘ |
| inception | 1617 ⓘ |
| inventor | John Napier NERFINISHED ⓘ |
| languageOfOriginalDescription | Latin ⓘ |
| materialUsed |
bone
ⓘ
ivory ⓘ metal ⓘ wood ⓘ |
| namedAfter | John Napier NERFINISHED ⓘ |
| notableFor |
influencing later mechanical calculators
ⓘ
simplifying long multiplication ⓘ speeding up division ⓘ |
| powerRequirement | none ⓘ |
| publicationDateOfFirstDescription | 1617 ⓘ |
| relatedTo |
Genaille–Lucas rulers
NERFINISHED
ⓘ
Rabdology NERFINISHED ⓘ abacus ⓘ logarithms ⓘ |
| typicalLayout | set of rods arranged side by side ⓘ |
| usedFor |
division
ⓘ
extraction of cube roots ⓘ extraction of square roots ⓘ multiplication ⓘ |
| userInteraction | manual placement and reading of rods ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.