
tight_bind.f: main routine for tight-binding potential
E_corr.f: calculate classical pair sum interactions
xkorjaus.f: derivative of classical pair sum
eispack.f: standard routines for matrix algebra
neighbor_tb.f: calculate neighbor list 
force_tb.f: calculates orbital forces
laske_H.f: sets up tight-binding Hamiltonian
smooth.f: function for distance dependence of Hamiltonian elements 
dsmooth.f: derivative of smooth.f
dos.f: calculates local and global densities of electronic states
tilatiheys.f: old code for density of states 

