Enter a species  (e.g. Al, Fe): Xe
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): 2.723180779473129e-10, 4.447024285808063e-10

Calculating isothermal bulk modulus

Optimization terminated successfully.
         Current function value: -0.397834
         Iterations: 71
         Function evaluations: 184

Finished calculation

C11 = 35.48808407095265 GPa
C12 = 9.497768106142798 GPa
  B = 18.161206761079416 GPa