One crucial question question about Napier's logarithms which needs to be answered is how he arrived at the values for
log2 and 0.5log2 apparently early on in his investigations according to the Constructio. It seems that he was aware early on
that log2 equals 1 - 1/2 + 1/3 - 1/4 etc, and that half this series measured log2^0.5. This could be his first recognition
half a logarithm measure the log of the square root.

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