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>
• 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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