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Device to aid arithmetic calculation, described by John Napier
rods inscribed with the multiplication table. Napier coined the word rabdology (from Greek ῥάβδος [rhabdos], rod and λόγoς [logos] calculation or reckoning)
Rabdology
1617 device for calculating products and quotients
numbers. The method was based on lattice multiplication, and also called rabdology, a word invented by Napier. Napier published his version in 1617. It was
Napier's_bones
Scottish mathematician (1550–1617)
Numerationis per Virgulas libri duo (Google Books link)(published posthumously) Rabdology (Wikipedia) (1619) Mirifici logarithmorum canonis constructio –written
John_Napier
16th-century device to aid multiplication
origin and use of the apparatus. John Napier (1990) [1617]. Rabdologiæ [Rabdology] (in Latin). Translated by William Frank Richardson. Introduction by Robin
Promptuary
One of three devices to aid arithmetic calculation described by John Napier in a treatise
which John Napier explored as a computation technique in his treatise Rabdology (1617), both symbolically and on a chessboard-like grid. Napier's terminology
Location_arithmetic
-ology Word Description Synonyms Alternative spellings rabdology The practice of performing arithmetic using Napier's bones named after a treatise by
List of words with the suffix -ology
List_of_words_with_the_suffix_-ology
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