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Re: Order of operations (was: Eigenvalues &/or eigenvectors,
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Re: Order of operations (was: Eigenvalues &/or eigenvectors,


  • Subject: Re: Order of operations (was: Eigenvalues &/or eigenvectors,
  • From: Reinhold Penner <email@hidden>
  • Date: Tue, 13 May 2003 10:06:13 -1000

On Tuesday, May 13, 2003, at 09:23 Pacific/Honolulu, Gary Lists wrote:

If I write -x^2, I expect the result to be a *negative* number.

Absolutely. Anyone with a decent math education would expect that.

WHY would you ever _expect_ that?

Because that's the rule. You may not like it or understand it, but exponentiation precedes negation

Having taught high school math and algebra, I can tell you that you no one
should expect a square to be negative.

You better apologize to your students... ;-)

-Reinhold
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 >Re: Order of operations (was: Eigenvalues &/or eigenvectors, (From: Gary Lists <email@hidden>)

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