napier : Idioms & Phrases
john napier
-
noun Scottish mathematician who invented logarithms; introduced the use of the decimal point in writing numbers (1550-1617)
Napier.
WordNet
napier's bones
-
noun a set of graduated rods formerly used to do multiplication and division by a method invented by John Napier
Napier's bones.
WordNet
Na"pi*er's bones`, Na"pi*er's rods`
(Also<
- Napier's bones
- Napier's rods
)
Definitions
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.
Webster 1913
napier's rods
-
noun a set of graduated rods formerly used to do multiplication and division by a method invented by John Napier
Napier's bones.
WordNet
Na"pi*er's bones`, Na"pi*er's rods`
(Also<
- Napier's bones
- Napier's rods
)
Definitions
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.