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MathGroup Archive 2003

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Re: Assumptions in fancy-notation integrals

  • To: mathgroup at smc.vnet.net
  • Subject: [mg44375] Re: Assumptions in fancy-notation integrals
  • From: Paul Abbott <paul at physics.uwa.edu.au>
  • Date: Fri, 7 Nov 2003 05:16:18 -0500 (EST)
  • Organization: The University of Western Australia
  • References: <bob700$qo9$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

In article <bob700$qo9$1 at smc.vnet.net>,
 "Curt Fischer" <crf3 at po.cwru.edu> wrote:

> I know I can do Integrate[stuff[x],{x,0,y},Assumptions->otherstuff] to
> specify, for instance, that a certain parameter in my system is a positive
> real.
> 
> Can I incorporate Assumptions into an Integral entered with the escape code
> [esc]dintt[esc]?  

You can add the Assumptions globally using 

   SetOptions[Integrate, Assumptions -> Re[k] > 0]

and then use typeset notation. Alternatively, in 5.0, you can use 
Assuming:

   Assuming[Re[k] > 0, typeset integral]

Cheers,
Paul

-- 
Paul Abbott                                   Phone: +61 8 9380 2734
School of Physics, M013                         Fax: +61 8 9380 1014
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AUSTRALIA                            http://physics.uwa.edu.au/~paul


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