[EVa5I7bHFq9mnYK]

I am old enough to remember printed books in the library that contained pre-computed tables of logarithms, sines and other common functions.

[Someone]

the probably were computed by mechanical means, but earlier ones were computed by hand.

One of Gauss’s ‘hobbies’ was to find errors in such tables.

There even were books containing tables of products of integers. You can buy a reproduction of one today: https://www.amazon.com/Calculating-Products-Thousand-Applica...