>>13172263Trig was done by physical measurements of a circle. Written down into a table. Some math tricks were used for higher precisions, but this wasn’t widely known, as long as the tables existed. Later algebra and tricks were able to get high precision for all integer angles, but this would pretty much exclusively be accessed as a table.
As for how Bernoulli calculated interest - I don’t know. It could be approximating into a fraction and then calculating the numerator and denominator, but the internet returns absolute shit grade 6 tier results
