Enter a species  (e.g. Al, Fe): Na
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: EAM_Dynamo_NicholAckland_2016_Na__MO_048172193005_000
Enter hexagonal lattice constants 'a' and 'c' (m): 3.939000936225057e-10, 6.432361593397741e-10

Calculating isothermal bulk modulus

Optimization terminated successfully.
         Current function value: -2.224469
         Iterations: 69
         Function evaluations: 181

Finished calculation

C11 = 18.87958776248116 GPa
C12 = 5.982390228903035 GPa
  B = 10.281456073429077 GPa