code: def get_lattice_vector_equivalence(point_symmetry):
      
      # primitive_vectors: column vectors
  
      equivalence = [False, False, False]
      for r in point_symmetry:
          if (np.abs(r[:, 0]) == [0, 1, 0]).all():
              equivalence[2] = True
          if (np.abs(r[:, 0]) == [0, 0, 1]).all():
              equivalence[1] = True
          if (np.abs(r[:, 1]) == [1, 0, 0]).all():
              equivalence[2] = True
          if (np.abs(r[:, 1]) == [0, 0, 1]).all():
              equivalence[0] = True
          if (np.abs(r[:, 2]) == [1, 0, 0]).all():
              equivalence[1] = True
          if (np.abs(r[:, 2]) == [0, 1, 0]).all():
              equivalence[0] = True
  
      return equivalence
docs: Return (b==c, c==a, a==b)