Re: Can I get ComplexExpand to really work?
- To: mathgroup at smc.vnet.net
- Subject: [mg14580] Re: Can I get ComplexExpand to really work?
- From: Paul Abbott <paul at physics.uwa.edu.au>
- Date: Fri, 30 Oct 1998 03:07:47 -0500
- Organization: University of Western Australia
- References: <719f5p$lc6@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Topher Cawlfield wrote:
For your example:
> ComplexExpand[Integrate[E^(I a x^2), {x, -Infinity, Infinity}]]
since you are assuming that 'a' is real and positive then you can use
In[1]:= Integrate[E^(I*a*x^2), {x, -Infinity, Infinity},
Assumptions -> a > 0]
Out[1]=
Pi
(1 + I) Sqrt[--]
2
----------------
Sqrt[a]
Cheers,
Paul
____________________________________________________________________
Paul Abbott Phone: +61-8-9380-2734
Department of Physics Fax: +61-8-9380-1014
The University of Western Australia Nedlands WA 6907
mailto:paul at physics.uwa.edu.au AUSTRALIA
http://www.physics.uwa.edu.au/~paul
God IS a weakly left-handed dice player
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