> You should not use such instructions if you care about any kind of accuracy This seems like an overly strong statement, as one reading of it is that "Fast Re

> You should not use such instructions if you care about any kind of accuracy This seems like an overly strong statement, as one reading of it is that "Fast Reciprocal Estimate" is just a bad rng function. I guess you mean that it's up to the user to provide their own error estimation?