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Digits of Accuracy

  1. Jun 26, 2013 #1
    I'm refreshing my knowledge of calculus and ran into this problem while working on limits.

    "Find∗ the value of each of the indicated limits to at least 3 digits of accuracy by evaluating f(x) at various values, or state that the limit does not exist (DNE)."

    My problem is with "at least 3 digits of accuracy." If I type in an answer like 6.78, it says I'm wrong. If I type in the answer 6.778, it says I'm right. 6.78 has 3 significant digits though, so shouldn't that work?

    It doesn't say 3 digits after the decimal point, it says "3 digits of accuracy." Isn't that referring to having 3 significant digits?
  2. jcsd
  3. Jun 26, 2013 #2


    Staff: Mentor

    IMO they are being sloppy by saying "digits of accuracy." To be clearer they should have phrased it as "three decimal places."
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