GK
BASIC GENERAL KNOWLEDGE
Question
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Logarithm tables were invented by

John Douglas


John Harrison


John Napier


John Doe

Explanation:
Detailed explanation1: The first tables of logarithms were published independently by Scottish mathematician John Napier in 1614 and Swiss mathematician Justus Byrgius in 1620. The first table of common logarithms was compiled by the English mathematician Henry Briggs.
Detailed explanation2: Napier was a Scottish mathematician and theological writer who came up with the concept of logarithms as a mathematical device to aid in calculations. It was the use of logarithms which formed the base for the invention of analog computers and slide rules.
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