A few years ago, I wrote a summary of Napier's conception and construction here: https://math.stackexchange.com/questions/47927/motivation-for-napiers-logarithm

A few years ago, I wrote a summary of Napier's conception and construction here: https://math.stackexchange.com/questions/47927/motivation-for-napiers-logarithms/48036#48036 https://math.stackexchange.com/questions/47927/motivation-fo...