I am the creator of https://nphysics.org. In order to prioritize future works on Rust physics engines, and to better understand the Rust community that need physics engines, I created a small survey. Taking a few minutes to fill this would be extremely helpful:
Please let me know if you have any problem answering these questions.
Thanks!
As I don't really fit into the survey:
My number crunching (sometimes physics, sometimes not) uses generally f32 with all accelerations possible, and in some cases f64 if the extra precision is needed, or to check how big the error of the f32 run is.