Noah Webster Dictionary (1913 edition): Napier's rods

Online Resource Library

Commentary Index | Return to PrayerRequest.com | Download

Noah Webster Dictionary (1913 edition): Napier's rods


Subjects in this Topic:

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.