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MathGroup Archive 2001

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Re: Forcing numbers to be real.

  • To: mathgroup at smc.vnet.net
  • Subject: [mg29074] Re: Forcing numbers to be real.
  • From: "Allan Hayes" <hay at haystack.demon.co.uk>
  • Date: Sun, 27 May 2001 18:04:41 -0400 (EDT)
  • References: <9eporm$1sc@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

David,
Possiblies:
The standard package Algebra`ReIM`
Using the option Assumptions in functions like Integrate
Adding assumption in functions like Simplify, FullSimplify
The standard package Miscellaneous`RealOnly`

Documentation is provided in the HelpBrowser


--
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

"David Kirkby" <REMOOVE_THIS_drkirkby at AND_THIS_ntlworld.com> wrote in
message news:9eporm$1sc at smc.vnet.net...
> Hi,
> I've not used Mathematica much, but I know there is a way documented of
> forcing Mathematica to consider a number to be real, so having an
> imaginary part of 0. Can anyone tell me how to do it - I can't seem to
> find it in the docs, although I know it is there somewhere.
>
> --
> Dr. David Kirkby Ph.D,
> email: REMOOVE_THIS_drkirkby at AND_THIS_ntlworld.com
> former email address: davek at DELLETE_THIS_medphys.ucl.ac.uk
> web page: http://www.david-kirkby.co.uk
> Amateur radio callsign: G8WRB
>




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