It appears Henry Briggs had used repeated square roots to compute logarithms: https://archived.hpcalc.org/laporte/Briggs%20and%20the%20HP35.htm https://archived

It appears Henry Briggs had used repeated square roots to compute logarithms: https://archived.hpcalc.org/laporte/Briggs%20and%20the%20HP35.htm https://archived.hpcalc.org/laporte/Briggs%20and%20the%20HP3... Mr Briggs had computed the first table of base 10 logarithms for the first few thousand natural numbers: https://en.wikipedia.org/wiki/Henry_Briggs_(mathematician) https://en.wikipedia.org/wiki/Henry_Briggs_(mathematician)