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Quick question

  1. Mar 24, 2004 #1
    consider function f(x) = 1/3X^3 - 1/2^2 - 6x + 4

    maximum is positive infinity and minimum is negative infiniti correct?

    Thank you!!
  2. jcsd
  3. Mar 24, 2004 #2

    matt grime

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    Not if you are looking for local optima. It might be better to say there is no global maximum or minimum, than it is at infinity, to avoid unnecessary use of infinity.
  4. Mar 24, 2004 #3


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    I wouldn't put it that way. I would say that the function is "unbounded" and has no global maximum or minimum.
  5. Mar 24, 2004 #4
    thanks for the help!!!
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