Enter a species  (e.g. Al, Fe): Al
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: Morse_Shifted_GirifalcoWeizer_1959MedCutoff_Al__MO_279544746097_003
Enter hexagonal lattice constants 'a' and 'c' (m): 2.855449179622805e-10, 4.66179431513437e-10

Calculating isothermal bulk modulus

Optimization terminated successfully.
         Current function value: -5.775666
         Iterations: 70
         Function evaluations: 184

Finished calculation

C11 = 154.61061471843934 GPa
C12 = 37.61980907236169 GPa
  B = 76.6167442877209 GPa