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MathGroup Archive 2004

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Re: can't MATHEMATICA simplify simple expressions?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg51539] Re: can't MATHEMATICA simplify simple expressions?
  • From: "Steve Luttrell" <steve_usenet at _removemefirst_luttrell.org.uk>
  • Date: Thu, 21 Oct 2004 22:21:07 -0400 (EDT)
  • References: <cl4tg0$8g7$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

You need to constrain the domain of a if you want to get the simplification 
you seek (which is NOT correct in general).

FullSimplify [ (a^2)^(3/2) ,a>0]

does what you want.

Steve Luttrell

"Cole Turner" <REMOVEcole.tuner at liwest.at> wrote in message 
news:cl4tg0$8g7$1 at smc.vnet.net...
> if I enter:
>
> FullSimplify [ (a^2)^(3/2) ]
>
> (in correct MATHEMATICA syntax, the program does not yield the correct
> result, a^3 ...
>
> why is that?
>
> thanks!
> -- 
> Johnny: [plugging back in the runway lights]
>          "Just kidding."
>                   ('Airplane!', 1980)
> 



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