Re: [Algorithms] fast pow() for limited inputs
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From: Simon F. <sim...@po...> - 2010-08-19 15:45:10
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Jeff, I don't know how much accuracy you are really after, but Jim Blinn had a little article called "Floating-Point Tricks" that was in IEEE CG&A Jul/Aug 1997, which has some "log2" and "exp2" approximations. It's also printed in his "Notation, Notation, Notation" book. Cheers Simon ________________________________ From: Jeff Russell [mailto:je...@8m...] Sent: 19 August 2010 16:32 To: Game Development Algorithms Subject: Re: [Algorithms] fast pow() for limited inputs Thanks Fabian, good info there. I'll check out minimax polynomials, and as both you and Simon pointed out base 2 log/exp would probably make more sense. Jeff |