I've heard that, for a time, logarithm tables "sold more than the Bible". Can someone produce some reliable documentation about how prevalent they were ? Would a common shopkeep have one ? Would a common merchant ship have one ?
(they would be used to make multiplications and divisions faster)
I am interested in information regarding any time period (though, as my wording suggests, the question was brought to my attention in the context of the 15th century)