Berkeley CSUA MOTD:Entry 12765
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2025/05/25 [General] UID:1000 Activity:popular
5/25    

2004/3/19-20 [Computer/Theory] UID:12765 Activity:nil
3/19    I read the link someone posted about Wolfram vs. Kahan. So maybe I'm
        ignorant, but it seems to assert that (1/r)^x r^x, for arbitrary r, is
        not 1. So, why not? Is it because of r=0?
        \_ yes.
        \_ KAHAN WINS!  GENGHISALITY!
        \_ Fractional powers can't be defined in a single continuous way for
           the whole complex plane. You can define a principal value, but
           it screws up equations like the above. E.G. r=-1, x=.5
           (-1)^.5 * (-1)^.5 = i * i = -1 != 1
        \_ Partha, would you please write an article describing W-vs-K?
           \- "go ask william what the wolfram said" ... talking to kahan
              is pretty much a guaranteed interesting experience. --psb
              \_ Some of us are do not live in berkeley anymore ....
        \_ And that was definitely the most exciting part of the entire 20th
           century!!  Yes, indeedy!
2025/05/25 [General] UID:1000 Activity:popular
5/25    

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