Enter a species (e.g. Al, Fe): S Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 Enter hexagonal lattice constants 'a' and 'c' (m): 2.042385595946308e-10, 3.335268193559099e-10 Calculating isothermal bulk modulus Warning: Maximum number of function evaluations has been exceeded. Finished calculation C11 = 15386.075889991065 GPa C12 = 4117.815697621985 GPa B = 7873.902428411679 GPa