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Functional equation

  1. Aug 21, 2005 #1
    let be the functional equation f(x,y)=g(r(x)+h(y)) my question is..does this equation have a solution?..thanks...
    Last edited: Aug 21, 2005
  2. jcsd
  3. Aug 21, 2005 #2
    let g(x) = x
    r(x) = x
    h(x) = x
    then, f(x,y) = x + y

    this is a functional equation.

    -- AI
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