Enter a species  (e.g. Al, Fe): Pr
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): 3.948607760006343e-10, 6.448178070383309e-10

Calculating isothermal bulk modulus

Optimization terminated successfully.
         Current function value: -21.641405
         Iterations: 73
         Function evaluations: 188

Finished calculation

C11 = 633.2324234696048 GPa
C12 = 169.47364050368154 GPa
  B = 324.0599014923226 GPa