Comment by cpeterso
4 years ago
JPL answers the question: How Many Decimals of Pi Do We Really Need?
> For JPL's highest accuracy calculations, which are for interplanetary navigation, we use 3.141592653589793.
https://www.jpl.nasa.gov/edu/news/2016/3/16/how-many-decimal...
That's not saying much as it appears to just be double precision, but yeah, rational approximations only save you one or two digits and after a certain point it’s more nerdy to just memorize pi.