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Re: simplify expr to = 1

  • To: mathgroup at smc.vnet.net
  • Subject: [mg37943] Re: simplify expr to = 1
  • From: "Allan Hayes" <hay at haystack.demon.co.uk>
  • Date: Wed, 20 Nov 2002 09:09:22 -0500 (EST)
  • References: <arequi$1a4$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Jerry:

    (-2/1)^(1/2)

         I*Sqrt[2]


    (1/-2)^(1/2)

        I/Sqrt[2]

    %*%%

        -1

But

    Simplify[(a)^r * (1/a)^r , {r\[Element]Reals, a>=0}]

        1

--
Allan

---------------------
Allan Hayes
Mathematica Training and Consulting
Leicester UK
www.haystack.demon.co.uk
hay at haystack.demon.co.uk
Voice: +44 (0)116 271 4198
Fax: +44 (0)870 164 0565


"Blimbaum Jerry DLPC" <BlimbaumJE at ncsc.navy.mil> wrote in message
news:arequi$1a4$1 at smc.vnet.net...
> Why duzz Mathematica not simplify    (f[x]/g[x])^r * (g[x]/f[x])^r   to
> equal 1  for r specified as belonging to Reals?   For r specified as
> Integer, however,  it  duzz reduce to 1....
>
>
> jerry blimbaum   NSWC panama city, fl
>




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