https://en.algorithmica.org/hpc/arithmetic/rsqrt/
> In fact, it is so good that it has been implemented in hardware, so the algorithm is no longer relevant by itself for software engineers, but we are nonetheless going to walk through it for its intrinsic beauty and great educational value.
https://en.algorithmica.org/hpc/arithmetic/rsqrt/
> In fact, it is so good that it has been implemented in hardware, so the algorithm is no longer relevant by itself for software engineers, but we are nonetheless going to walk through it for its intrinsic beauty and great educational value.