np.negative

np.negative(x)

Returns the element-wise additive inverse of a Galois field array.

References

• https://numpy.org/doc/stable/reference/generated/numpy.negative.html

Examples

In [1]: GF = galois.GF(31)

In [2]: x = GF.Random(10); x
Out[2]: GF([15, 29, 16, 19,  7,  3, 16,  4,  4, 13], order=31)

In [3]: y = np.negative(x); y
Out[3]: GF([16,  2, 15, 12, 24, 28, 15, 27, 27, 18], order=31)

In [4]: x + y
Out[4]: GF([0, 0, 0, 0, 0, 0, 0, 0, 0, 0], order=31)

In [5]: -x
Out[5]: GF([16,  2, 15, 12, 24, 28, 15, 27, 27, 18], order=31)

In [6]: -1*x
Out[6]: GF([16,  2, 15, 12, 24, 28, 15, 27, 27, 18], order=31)