Enter a species  (e.g. Al, Fe): P
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): 2.081281604598968e-10, 3.398786446503516e-10

Calculating isothermal bulk modulus

Optimization terminated successfully.
         Current function value: -83.778724
         Iterations: 72
         Function evaluations: 189

Finished calculation

C11 = 16739.82243708744 GPa
C12 = 4480.122037005232 GPa
  B = 8566.688837032634 GPa