Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2007
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2007

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

Search the Archive

Problems with simplify and Sqrt[a^2]

  • To: mathgroup at smc.vnet.net
  • Subject: [mg73845] Problems with simplify and Sqrt[a^2]
  • From: dshortho <david.shorthouse at credit-suisse.com>
  • Date: Fri, 2 Mar 2007 06:22:53 -0500 (EST)

any help on this one:

if you type in:
v3/Sqrt[v1^2]/Sqrt[v2^2] - v3/v1/v2

you get the same expression

Even if you then type
Simplify[%]

you still get the same expression

I would have thought Mathematica would have resolved Sqrt[v1^2] to v1 (!?)

Does anyone out there know why it does not do this, as it is causing some problems with some proofs I am doing ?


  • Prev by Date: NIntegrate - Gaussian quadrature more exact than thought
  • Next by Date: Interrupt Service Routines in Mathematica v.5.2?
  • Previous by thread: Re: monomials in Graded Lexicographic Order and associated
  • Next by thread: Re: Problems with simplify and Sqrt[a^2]