The ABINIT Users Mailing List ( CLOSED )

[Xavier Gonze <xavier.gonze@uclouvain.be>]

On 26 Dec 2009, at 16:14, hichem.bouderba@gmail.com wrote:

> may I have an idea why is it so ?

The determinant of this 3x3 matrix is the volume of the  
parallelipipedic supercell
defined by the three vectors whose reciprocal lattice is the set of k  
points.
This is a basic trick in 3D geometry : Question - given three vectors,  
find the volume of the
parallelipiped they define - Answer - build the determinant of the 3x3  
matrix.

X.