Comment on Understanding Quake's Fast Inverse Square RootparentComments−gcv17yAccording to this article, neither of them: http://www.beyond3d.com/content/articles/8/That article also links to a paper (http://www.lomont.org/Math/Papers/2003/InvSqrt.pdf) analyzing the initial approximation constant.
Comments
According to this article, neither of them: http://www.beyond3d.com/content/articles/8/
That article also links to a paper (http://www.lomont.org/Math/Papers/2003/InvSqrt.pdf) analyzing the initial approximation constant.