[Pw_forum] Rotation matrix

[Stefano de Gironcoli]

because they are written as transformations of the fundamental lattice 
vectors into linear (integer) combinations of themselves.
stefano

On 10/17/2012 03:00 AM, Caloma Trumica wrote:
> Dear all,
>
> I have a quick question about the rotation matrix s(3,3,48).
>
> Why each element of it must be an integer?
>
> Thank you.
>
> Andy
>
>
>
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