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MathGroup Archive 1995

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How to simplify Sqrt[x^2]?

  • To: mathgroup at christensen.cybernetics.net
  • Subject: [mg1712] How to simplify Sqrt[x^2]?
  • From: Dirk.Schwarzhans at cs.tu-berlin.de
  • Date: Mon, 17 Jul 1995 05:34:36 -0400
  • Organization: Technical University of Berlin, Germany

Hello,

Mathematica does not simplify expressions like Sqrt[x^2] because there are  
two solutions x and -x.
How do I get Mathematica to assume the positive solution in order to  
simplify expressions containing something like Sqrt[x^2]/x.

Thanks in advance,

Dirk Schwarzhans


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