This code aims to calculate the phonon related properties based on the EAM potential by deriving the derivatives of the force field. For PDOS evaluations, the irreducible q-points were generated by calling the library symspg, which could be found: http://sourceforge.net/projects/spglib/ sgl library is also used for interpolating the EAM potential via splines; and clapack is also needed for the eigen problems. Author: L.T. Kong 2010