Enter a species  (e.g. Al, Fe): Ag
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: Morse_Shifted_GirifalcoWeizer_1959MedCutoff_Ag__MO_861893969202_003
Enter hexagonal lattice constants 'a' and 'c' (m): 2.882814378551899e-10, 4.706711602682225e-10

Calculating isothermal bulk modulus

Optimization terminated successfully.
         Current function value: -5.951660
         Iterations: 70
         Function evaluations: 181

Finished calculation

C11 = 208.90482287835826 GPa
C12 = 52.23613203824551 GPa
  B = 104.45902898494975 GPa