Services & Resources / Wolfram Forums
MathGroup Archive
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2005

[Date Index] [Thread Index] [Author Index]

Search the Archive

Simplfying inside Sqrt

  • To: mathgroup at
  • Subject: [mg55106] Simplfying inside Sqrt
  • From: billkavanagh at
  • Date: Sat, 12 Mar 2005 02:36:58 -0500 (EST)
  • Sender: owner-wri-mathgroup at


I'm wondering how to tell mathematica that I want terms like
Sqrt[x^2+x^4] to be x*Sqrt[1+x^2].   I have an expression with a few
terms like this in it so manually inserting a
PowerExpand[Sqrt[Expand[x^2+x^4]] is no good to me.

I've tried a general PowerExpand and Simplify with a Im[x]==0 around
the whole expression but with no luck.

Does anybody know how to do this?


William R. Kavanagh

  • Prev by Date: Re: String comparison
  • Next by Date: Plotting a super ellipse
  • Previous by thread: Re: LUDecomposition
  • Next by thread: Re: Simplfying inside Sqrt