Enter a species  (e.g. Al, Fe): H
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): 6.029889357576779e-11, 9.846964578940218e-11

Calculating isothermal bulk modulus

Optimization terminated successfully.
         Current function value: -74.575468
         Iterations: 71
         Function evaluations: 182

Finished calculation

C11 = 612741.9127164846 GPa
C12 = 163989.70286358212 GPa
  B = 313573.7728145496 GPa