Enter a species  (e.g. Al, Fe): Ni
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): 2.411957946338743e-10, 3.938789354123346e-10

Calculating isothermal bulk modulus

Optimization terminated successfully.
         Current function value: -34.569357
         Iterations: 75
         Function evaluations: 194

Finished calculation

C11 = 4438.045906810385 GPa
C12 = 1187.7658142370028 GPa
  B = 2271.1925117614633 GPa