Hi All,
      When we use Siesta to calculate the energyband, the output file contains 
the following information:
____________________________________________________________________

# GNUBANDS: Utility for SIESTA to transform bands output into Gnuplot format
#
#                                                  Emilio Artacho, Feb. 1999
# --------------------------------------------------------------------------
# E_F               =    -6.2917
# k_min, k_max      =     0.0000    1.7775
# E_min, E_max      =   -25.7583   15.8287
# Nbands, Nspin, Nk =      8     1  1001
#
#        k            E
# --------------------------------------------------------------------------
_____________________________________________________________________


My question is that how the 'K_max' is determined or how we get the  'K_max' . 
Would anyone give me a help?
As follows, the K_Points in the input file is:
_____________________________________
 BandLinesScale     pi/a
%block BandLines  
1     0.0000   0.0000   0.0000  /GAMMA
500   1.1547   0.6667   0.0000  K
500   0.0000   0.0000   0.0000  /GAMMA
%endblock BandLines 
_____________________________________


Best,
--
 Liu


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