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Squared numbers

  1. Mar 5, 2010 #1
    Why do negative numbers which are squared by a even number always return as a negative while using a calculator? e.g. (-1)^2 = 1, except calculators say -1, even though -1*-1 = 1 :S:S
  2. jcsd
  3. Mar 5, 2010 #2

    Char. Limit

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    Gold Member

    Well, if you type it in like this: -1^2 then the calculator interprets it as -(1^2)=-1. try inputting (-1)^2.
  4. Mar 5, 2010 #3
    Oh okay, thanks.
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