Enter a species  (e.g. Al, Fe): W
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: Morse_Shifted_GirifalcoWeizer_1959LowCutoff_W__MO_489351836217_003
Enter hexagonal lattice constants 'a' and 'c' (m): 2.823213209638919e-10, 4.610813547810442e-10

Calculating isothermal bulk modulus

Optimization terminated successfully.
         Current function value: -16.737840
         Iterations: 72
         Function evaluations: 193

Finished calculation

C11 = 665.5721120766646 GPa
C12 = 166.33181439832723 GPa
  B = 332.74524695777296 GPa