def levi_civita_tensor(dim):
"""
Parameters
----------
dim
Returns
-------
"""
epsilon = np.zeros((dim, ) * dim)
for index_tup in permutations(range(dim), dim):
epsilon[index_tup] = perm_parity(list(index_tup))
return epsilon
def test_perm_parity_correctness_on_odd_sequences(seq):
assert perm_parity(seq) == -1
