Napier's bones

Show Summary Details

Quick Reference

An invention by Napier for carrying out multiplication. It consisted of a number of rods made of bone or ivory, which were marked with numbers from the multiplication tables. Multiplication using the rods involved some addition of digits and was very similar to the familiar method of long multiplication. Logarithms were not involved at all.

Subjects: Mathematics.

Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.