2 papers
math.NA2018
Improving the accuracy of the fast inverse square root algorithm
Cezary J. Walczyk, Leonid V. Moroz, Jan L. Cieśliński
We present improved algorithms for fast calculation of the inverse square root for single-precision floating-point numbers. The algorithms are much more accurate than the famous fa…
cs.MS2016
Fast calculation of inverse square root with the use of magic constant analytical approach
Leonid V. Moroz, Cezary J. Walczyk, Andriy Hrynchyshyn +2
We present a mathematical analysis of transformations used in fast calculation of inverse square root for single-precision floating-point numbers. Optimal values of the so called m…