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MathGroup Archive 2002

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Re: Integrate and warning messages.

  • To: mathgroup at smc.vnet.net
  • Subject: [mg35305] Re: [mg35295] Integrate and warning messages.
  • From: BobHanlon at aol.com
  • Date: Mon, 8 Jul 2002 03:15:34 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

In a message dated 7/6/02 6:33:44 AM, ariciputi at despammed.com writes:

>I'm trying to solve an integral and before getting the result 
>Mathematica warns me several times with this message:
>
>Solve::incnst: Inconsistent or redundant transcendental equation.
>
>After reduction, the bad equation is -Sqrt[1+3x^2]/(1+Sqrt[1+3x^2]) + 
>Log[Exp[Sqrt[1+3x^2]]] - Sqrt[1+3x^2]Log[Exp[Sqrt[1+3x^2]]]/(1+Sqrt[
>1+3x^2]) == 0
>
>
>Can anyone explain it to me??
>

Your "bad" equation is True for all real x.

Simplify[-Sqrt[1+3x^2]/(1+Sqrt[1+3x^2])+
      Log[Exp[Sqrt[1+3x^2]]]-
      Sqrt[1+3x^2]Log[Exp[Sqrt[1+3x^2]]]/
          (1+Sqrt[1+3x^2])==0,
 
  Element[x, Reals]]

True

Your problem must lay elsewhere.


Bob Hanlon
Chantilly, VA  USA


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