Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!cs.utexas.edu!tut.cis.ohio-state.edu!att!dptg!ulysses!andante!alice!ark From: ark@alice.UUCP (Andrew Koenig) Newsgroups: comp.lang.c Subject: Re: Implementation of pow(3m) function Keywords: math-library exponentiation C Message-ID: <11162@alice.UUCP> Date: 7 Aug 90 22:54:24 GMT References: <13474@smoke.BRL.MIL> <46584@brunix.UUCP> <11143@alice.UUCP> <2621@dataio.Data-IO.COM> Organization: AT&T Bell Laboratories, Liberty Corner NJ Lines: 11 In article <2621@dataio.Data-IO.COM>, bright@Data-IO.COM (Walter Bright) writes: > What do you think of the algorithm described in Cody & Waite's > "Software Manual For The Elementary Functions"? It's not bad, but if I remember correctly it could be significantly improved upon. I think I recall an article in the IBM Journal of R&D about a power algorithm that gives no more than 1 ULP error. -- --Andrew Koenig ark@europa.att.com