Error in calculating multiplication order

[hhucchenyixiao]

Hello,
I'm using galois 0.3.7 and ran into the following error when trying to find the multiplicative order of an element in GF(2**64-59)

gf_p = galois.GF(2**64-59)
gf_p(1).multiplicative_order()

This results in a ValueError:

File "f:\project\spinal_project\Ntt\sw\get_zeta.py", line 19, in <module>
  gf_p(1).multiplicative_order()
File "D:\software\miniconda\lib\site-packages\galois\_fields\_array.py", line 1048, in multiplicative_order
  y = np.power.outer(x, d)  # x^d -- the first divisor d for which x^d == 1 is the order of x
File "D:\software\miniconda\lib\site-packages\galois\_domains\_ufunc.py", line 682, in __array_ufunc__
  return getattr(field, field._OVERRIDDEN_UFUNCS[ufunc])(ufunc, method, inputs, kwargs, meta)
File "D:\software\miniconda\lib\site-packages\galois\_domains\_ufunc.py", line 481, in __call__
  self._verify_operands_first_field_second_int(ufunc, inputs, meta)
File "D:\software\miniconda\lib\site-packages\galois\_domains\_ufunc.py", line 251, in _verify_operands_first_field_second_int
  raise ValueError(
ValueError: Operation 'power' requires operands with type np.ndarray to have integer dtype, not float64.

[mhostetter]

Thanks for the report. I can reproduce. I'll investigate.

[mhostetter]

The fix will be released in v0.3.8. For now, you can install the fix this way:

python3 -m pip install git+https://github.com/mhostetter/galois.git@release/0.3.x

Feel free to re-open if you still have issues.