Numpy Modular arithmetic

Question

How can I define in numpy a matrix that uses operations modulo 2?

For example:

0 0       1 0       1 0
1 1   +   0 1   =   1 0

Thanks!

Answer 1

This operation is called "xor".

>>> import numpy
>>> x = numpy.array([[0,0],[1,1]])
>>> y = numpy.array([[1,0],[0,1]])
>>> x ^ y
array([[1, 0],
       [1, 0]])

BTW, (element-wise) multiplication modulo 2 can be done with "and".

>>> x & y
array([[0, 0],
       [0, 1]])