Napier's rods


Napier's rods
Another name for Napier’s bones.

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  • Napier's rods — Napier s bones Na pi*er s bones , Napier s rods Na pi*er s rods A set of rods, made of bone or other material, each divided into nine spaces, and containing the numbers of a column of the multiplication table; a contrivance of Baron Napier, the… …   The Collaborative International Dictionary of English

  • Napier's rods — noun a set of graduated rods formerly used to do multiplication and division by a method invented by John Napier • Syn: ↑Napier s bones • Usage Domain: ↑plural, ↑plural form • Hypernyms: ↑calculator, ↑calculating machine …   Useful english dictionary

  • Napier's bones — Na pi*er s bones , Napier s rods Na pi*er s rods A set of rods, made of bone or other material, each divided into nine spaces, and containing the numbers of a column of the multiplication table; a contrivance of Baron Napier, the inventor of… …   The Collaborative International Dictionary of English

  • Napier's bones — Computing devices in Rabdology Napier s bones Promptuary …   Wikipedia

  • Napier's bones — noun a set of graduated rods formerly used to do multiplication and division by a method invented by John Napier • Syn: ↑Napier s rods • Usage Domain: ↑plural, ↑plural form • Hypernyms: ↑calculator, ↑calculating machine …   Useful english dictionary

  • Napier's bones — Math. a form of multiplication table originally marked on sticks of bone or ivory that could be rearranged to carry out the operations of multiplication or division. Also called Napier s rods. [1650 60; after their developer, J. NAPIER] * * * …   Universalium

  • Napier Deltic — engine at the National Railway Museum, York, UK The Napier Deltic engine is a British opposed piston valveless, two stroke diesel engine used in marine and locomotive applications, designed and produced by Napier Son. The cylinders were divided… …   Wikipedia

  • Napier, John — born 1550, Merchiston Castle, near Edinburgh, Scot. died April 4, 1617, Merchiston Castle Scottish mathematician and champion of Protestantism. He divided his life between attacks on the church of Rome and the pursuit of numerical calculations.… …   Universalium

  • Napier's bones — noun Date: circa 1658 a set of graduated rods (as of wood or bone) invented by John Napier and used for multiplication and division based on the principles of logarithms …   New Collegiate Dictionary

  • Napier'sbones — Na·pi·er s bones (nāʹpē ərz, nə pîrzʹ) pl.n. (used with a sing. verb) A set of graduated rods used to perform multiplication quickly.   [After Napier, John.] * * * …   Universalium


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