The rsqrt page mentions hardware implementations https://en.algorithmica.org/hpc/arithmetic/rsqrt/ https://en.algorithmica.org/hpc/arithmetic/rsqrt/ > In fact

The rsqrt page mentions hardware implementations https://en.algorithmica.org/hpc/arithmetic/rsqrt/ 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.