>afaiu simulations of physical systems get away with double precision, if one is careful. Doesn't this depend very much on the physical system in question. I c

>afaiu simulations of physical systems get away with double precision, if one is careful. Doesn't this depend very much on the physical system in question. I could imagine that simulating chaotic systems needs a lot of precision. Simulation of n-body problems and others are mentioned [1]. [1] https://www-zeuthen.desy.de/acat05/talks/de_Dinechin.Florent.2/QuadAndMore.pdf https://www-zeuthen.desy.de/acat05/talks/de_Dinechin.Florent...