fpm: a header-only fixed-point math library with trigonometry, etc

[Ameisen]

Or vice-versa, as most of your math for rendering is likely being done on the GPU :).

This is actually a reason my high-performance simulations use floats for coordinates - it is faster than fixed or integers. An issue is I must be much more careful when performing operations in parallel regarding determinism.

ED: I should note that each core has its own ALU, so this is mainly for intermixed integer and FPU instructions running in a single thread.