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MathGroup Archive 2004

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Re: Help with a calculation

  • To: mathgroup at smc.vnet.net
  • Subject: [mg51627] Re: [mg51601] Help with a calculation
  • From: DrBob <drbob at bigfoot.com>
  • Date: Wed, 27 Oct 2004 23:42:15 -0400 (EDT)
  • References: <200410270554.BAA24496@smc.vnet.net>
  • Reply-to: drbob at bigfoot.com
  • Sender: owner-wri-mathgroup at wolfram.com

>> Apologies, in the case my question is in some way naive.

Probably not; it's certainly illegible, though.

I recommend the "Copy as InputForm" palette at:

http://eclecticdreams.net/DrBob/copy_as_inputform.htm

Bobby

On Wed, 27 Oct 2004 01:54:03 -0400 (EDT), Simone Severini <ss54 at york.ac.uk> wrote:

> Dear All,
>
> I' m here asking for some help with the following calculation:
>
> $\sum_{r=0}^{3}\operatorname{Re}\left(  \left(  \alpha_{3,r}^{\ast}%
> -\alpha_{4,r}^{\ast}\right)  \left(  \alpha_{2,r}e^{-i\phi_{r}}-\alpha
> _{1,r}e^{i\phi_{r}}\right)  \right)  =2\sqrt{2}$
>
> $\sum_{r=0}^{3}\alpha_{j,r}\alpha_{k,r}^{\ast}=\delta_{j,k}$ with
> $j,k=1,2,3,4$
>
> $\sum_{j=1}^{4}\left\vert \alpha_{j,r}\right\vert ^{2}=1$ for $r=0,1,2,3$
>
> Is Mathematica able to find solutions?
>
> In case of affirmative answer, how do I program Mathematica for this task?
>
> Apologies, in the case my question is in some way naive.
>
> Thanks,
> Simone
>
>
>
>



-- 
DrBob at bigfoot.com
www.eclecticdreams.net


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