How We Used Log Tables

A description of how we used to use 4-figure log tables to do calculations. Also other 4-figure tables and 7-figure log tables. Some stuff about how common logarithms, ie logs to base 10, are relevant to today's education - for getting a grip on what exponentiation growth is like, and for mental Fermi estimating.

[bongo_]

This is really interesting! Thank you for explaining. I want to get my hands on a 4 figure log table book now.