- 1. 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 logarithms, for facilitating the operations of multiplication and division. Source: opted
- 2. n. a set of graduated rods formerly used to do multiplication and division by a method invented by John Napier Source: wordnet
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napier's rods
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multiplicationNapierdivisionrodssetbaronbonecolumncontainingcontrivancedividedfacilitatingformerlygraduatedinventedinventorjohnlogarithmsmaterialmethodnumbersoperationsspacestable
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