Enter a species  (e.g. Al, Fe): O
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): 1.28378739672246e-10, 2.096457908965882e-10

Calculating isothermal bulk modulus

Optimization terminated successfully.
         Current function value: -85.376993
         Iterations: 72
         Function evaluations: 190

Finished calculation

C11 = 72689.43858997252 GPa
C12 = 19454.061096595415 GPa
  B = 37199.186927721115 GPa