Enter a species  (e.g. Al, Fe): Kr
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): 2.256351961117685e-10, 3.684680842326246e-10

Calculating isothermal bulk modulus

Warning: Maximum number of function evaluations has been exceeded.

Finished calculation

C11 = 45.25328580211852 GPa
C12 = 12.111254177773924 GPa
  B = 23.158598052555455 GPa