John Napier, Scottish mathematician, c 1600s.
4 0 c m
 
31cm
actual image size: 23cm x 32cm

John Napier, Scottish mathematician, c 1600s.

© Science Museum / Science & Society Picture Library

Description

John Napier (1550-1617) spent 20 years on the research that would lead to the invention of logarithms: a method of reducing a complex multiplication to that of a simple addition. Napier is probably better known for his comparatively trivial invention of the 'Napier's Rods' or 'Bones' calculating apparatus. He is also thought to have introduced the decimal point into common usage.
 

Image Ref.

10325087
 

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