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MathGroup Archive 2005

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Absolute value of a symbolic complex expression

  • To: mathgroup at smc.vnet.net
  • Subject: [mg62190] Absolute value of a symbolic complex expression
  • From: "mailcwc at gmail.com" <mailcwc at gmail.com>
  • Date: Sun, 13 Nov 2005 21:16:39 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

I have a long complex equation with all symbols real. How do I get the
Abs of that equation.
For example, Abs[a + i b] =Sqrt[a^2 +b^2]


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