Absolutely, I should’ve been more precise: it’s perfectly fine for most applications, but not for a library, or, say, manned aviation. So, yeah, when optimising

Absolutely, I should’ve been more precise: it’s perfectly fine for most applications, but not for a library, or, say, manned aviation. So, yeah, when optimising for accuracy, range, or speed you might implement it differently, respectively. I mean, papers have been written about sqrt(a^2+b^2) alone… :-) https://arxiv.org/abs/1904.09481 https://arxiv.org/abs/1904.09481