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I A Simple Equation, but a Complicated Solution

  1. Jan 21, 2017 #1
    In Julian Havil's book " The Irrationals a Story of the Numbers You Can't Count On" he discusses solutions to a simple fifth degree equation on page 133:
    ##x^5-5x+12=0##
    "the only real solution [of this equation is] the irrational number:
    ##x=-1.84208596619025438271118...##

    This number requires about 600 symbols for its exact expression in radicals."
    I looked all over the internet to find this irrational number expressed as 600 symbols , but I was unable to find it. Any help out there?
     
  2. jcsd
  3. Jan 21, 2017 #2

    micromass

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  4. Jan 21, 2017 #3

    fresh_42

    Staff: Mentor

    Got it! Unfortunately my Japanese has suffered a little ...
    (see also https://en.wikipedia.org/wiki/Bring_radical)
     
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