Rabdologiæ, seu numerationis per virgulas libri duo
107. Napier later extended his use of logarithms in a mecahnical form in this
book. He devised a simple method of multiplying and dividing using small rods
called "Napier's bones." These rods became the basis for what later became
the slide rule.
Creator:
Napier, John
Published:
A. Hart, Edinburgi, 1617
Topic:
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