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Functions: Different values of y for same value of x

  1. Jul 7, 2010 #1
    Is it possible to create a function that has two values of y for every one value of x, or is this an unbreakable rule of functions?
     
  2. jcsd
  3. Jul 7, 2010 #2

    CRGreathouse

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    Multivalued functions exist, but they're not functions.
     
  4. Jul 7, 2010 #3
    Thanks :)
     
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