[Pw_forum] Compute the distance between two point in reciprocal lattice.

[Hongsheng Zhao]

Hi all,

In gereral case, for a tri-clinic lattice,  based on the fractional 
positions of two k-points relative to the reciprocal space lattice 
vectors, how can I compute the distance between these two points in 
reciprocal space?   Does someone here have the script/tools for this 
purpose?

Regards.
-- 
Hongsheng Zhao <zhaohscas at yahoo.com.cn>
School of Physics and Electrical Information Science,
Ningxia University, Yinchuan 750021, China