Question

Napier's Bones
Napier's bones was a calculating device
invented by Sir John Napier in 1616. As this
device had rods of ivory bones on which
numbers were carved, it was called Napier's
bones. It was used for addition, subtraction,
multiplication, and division.​

Answer 1

Answer:

plz mark me as the brainliest answer

Explanation:

Napier's bones is a manually-operated calculating device created by John Napier of Merchiston, Scotland for the calculation of products and quotients of numbers. The method was based on lattice multiplication, and also called 'rabdology', a word invented by Napier. Napier published his version in 1617.

Answer 2

Answer:

Explanation:

Napier's bones is a manually-operated calculating device created by John Napier of Merchiston, Scotland for the calculation of products and quotients of numbers. The method was based on lattice multiplication, and also called 'rabdology', a word invented by Napier. Napier published his version in 1617 in Rabdologiæ,[1] printed in Edinburgh, dedicated to his patron Alexander Seton.

In 15th century there was not a proper device to perform the calculations of addition, subtraction, division and multiplication and it was very hard to perform problems related to this. Hence this made Napier and Oughtred to create Napier bones, Slide rule in the 16th century....