I've read about the fast inverse square root trick, but it didn't occur to me that it can be used for other formulas or operations. Is this a common trick in DSP/GPU-like architectures nowadays?
And what's the mathematical basis? (that is, is this technique formalized anywhere?)
It seems insane to me that you run Newton's algorithm straight on the IEEE 754 format bits and it works, what with the exponent in excess coding and so on
And what's the mathematical basis? (that is, is this technique formalized anywhere?)
It seems insane to me that you run Newton's algorithm straight on the IEEE 754 format bits and it works, what with the exponent in excess coding and so on